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			{{Short description|Codes of a library classification system}}
	The '''Dewey Decimal System''' of library classification is made up of ten main classes or categories, each divided into 10 secondary classes or subcategories, each having 10 subdivisions of its own.
			{{pp-move}}
			The ] (DDC) is structured around ten main classes covering the entire world of ]; each main class is further structured into ten ] divisions, each having ten divisions of increasing specificity.<ref></ref> As a system of ] the DDC is "arranged by discipline, not subject", so a topic like ] is classed based on its disciplinary treatment (psychological influence of clothing at 155.95, customs associated with clothing at 391, and fashion design of clothing at 746.92) within the conceptual framework.<ref></ref> The list below presents the ten main classes, hundred divisions, and thousand sections.<ref></ref>
	== 000 &ndash; Computer science, information, and general works ==		== Class 000 – Computer science, information, and general works ==
	*'''000 Generalities'''		*'''000 Computer science, knowledge, and systems'''
			**000 ], information and general works
	**001 ]
			**001 ]
	**002 ]
			**002 The ] (writing, libraries, and book-related topics)
	**003 ]s
	**004 ] and ]		**003 ]s
			**004 ] and ]
	**005 ], ]s, ]		**005 ], ], and ]
			**006 Special computer methods <!-- *Not* methods as in functions in computer programming --> (e.g. AI, multimedia, VR)<ref>{{cite web |title=000 Computer science, information, general works |url=https://www.oclc.org/content/dam/oclc/webdewey/help/000.pdf |publisher=OCLC |access-date=2022-01-08}}</ref>
	**006 Special computer methods
			**007–009
	**''007 Not assigned or no longer used ''
			*'''010 ]'''
	**''008 Not assigned or no longer used ''
			**010 Bibliography
	**''009 Not assigned or no longer used ''
	*'''010 ]'''
	**011 Bibliographies		**011 Bibliographies
	**012 Bibliographies of individuals		**012 Bibliographies of individuals
			**013
	**013 Bibliographies of works by specific classes of authors
	**014 Bibliographies of anonymous and pseudonymous works		**014 Bibliographies of ] and ]ous works
	**015 Bibliographies of works from specific places		**015 Bibliographies of works from specific places
	**016 Bibliographies of works from specific subjects		**016 Bibliographies of works on specific subjects
	**017 General subject catalogs		**017 General subject catalogs
	**018 Catalogs arranged by author & date		**018 Catalogs arranged by author, date, etc.
	**019 Dictionary catalogs		**019 ] catalogs
	*'''020 ] & ]s'''		*'''020 ]'''
	**021 Library relationships		**020 Library and information sciences
			**021 Library relationships (with ]s, information centers, etc.)
	**022 Administration of the physical plant
			**022 Administration of physical plant
	**023 Personnel administration
			**023 ]
	**''024 Not assigned or no longer used ''
			**024
	**025 Library operations
			**025 ]
	**026 ]
			**026 Libraries for specific subjects
	**027 ]
			**027 General libraries
	**028 Reading, use of other information media
			**028 ] and use of other information media
	**''029 Not assigned or no longer used ''
			**029
	*'''030 ]'''
			*'''030 Encyclopedias and books of facts'''
	**031 ]
	**032 ]		**030 General ] works
			**031 Encyclopedias in ]
	**033 General encyclopedic works in other Germanic languages
			**032 Encyclopedias in ]
	**034 ], Provencal, Catalan
			**033 Encyclopedias in other ]
	**035 ], Romanian, Rhaeto-Romanic
			**034 Encyclopedias in ], ], and ]
	**036 ] & Portuguese (])
			**035 Encyclopedias in ], ], and related languages
	**037 General encyclopedic works in Slavic languages
			**036 Encyclopedias in ] and ]
	**038 General encyclopedic works in Scandinavian languages
	**039 General encyclopedic works in other languages		**037 Encyclopedias in ]
			**038 Encyclopedias in ]
	*'''040 Not assigned or no longer used'''
			**039 Encyclopedias in other languages
	**''041 Not assigned or no longer used ''
			*'''040 Unassigned ''(formerly ])'''''
	**''042 Not assigned or no longer used ''
			*'''050 Magazines, journals and serials'''
	**''043 Not assigned or no longer used ''
			**050 General serial publications
	**''044 Not assigned or no longer used ''
			**051 Serials in American English
	**''045 Not assigned or no longer used ''
			**052 Serials in English
	**''046 Not assigned or no longer used ''
			**053 Serials in other Germanic languages
	**''047 Not assigned or no longer used ''
			**054 Serials in French, Occitan, and Catalan
	**''048 Not assigned or no longer used ''
			**055 Serials in Italian, Romanian, and related languages
	**''049 Not assigned or no longer used ''
			**056 Serials in Spanish and Portuguese
	*'''050 General serials & their ]'''
			**057 Serials in Slavic languages
	**051 General serials & their indexes American
			**058 Serials in Scandinavian languages
	**052 General serials & their indexes In English
	**053 General serials & their indexes In other Germanic languages		**059 Serials in other languages
			*'''060 Associations, organizations and museums'''
	**054 General serials & their indexes In French, Provencal, Catalan
			**060 General organizations and museum science
	**055 General serials & their indexes In Italian, Romanian, Rhaeto-Romanic
			**061 Organizations in ]
	**056 General serials & their indexes In Spanish & Portuguese
			**062 Organizations in ]; in ]
	**057 General serials & their indexes In Slavic languages
			**063 Organizations in ]; in ]
	**058 General serials & their indexes In Scandinavian languages
			**064 Organizations in ] and ]
	**059 General serials & their indexes In other languages
			**065 Organizations in ] and adjacent islands
	*'''060 General organization & ]'''
			**066 Organizations in ] and adjacent islands
	**061 General organization & museology In North America
			**067 Organizations in ]; in ]
	**062 General organization & museology In British Isles In England
			**068 Organizations in other geographic areas
	**063 General organization & museology In central Europe In Germany
			**069 ]
	**064 General organization & museology In France & Monaco
			*'''070 ], ], and ]'''
	**065 General organization & museology In Italy & adjacent territories
			**070 News media, journalism, and publishing
	**066 General organization & museology In Iberian Peninsula & adjacent islands
			**071 Newspapers in North America
	**067 General organization & museology In eastern Europe In Soviet Union
			**072 Newspapers in British Isles; in England
	**068 General organization & museology In other areas
			**073 Newspapers in central Europe; in Germany
	**069 Museology (Museum science)
			**074 Newspapers in France and Monaco
	*'''070 ], ], ]'''
			**075 Newspapers in Italy and adjacent islands
	**071 News media, journalism, publishing In North America
			**076 Newspapers in Iberian peninsula and adjacent islands
	**072 News media, journalism, publishing In British Isles In England
			**077 Newspapers in eastern Europe; in Russia
	**073 News media, journalism, publishing In central Europe In Germany
			**078 Newspapers in Scandinavia
	**074 News media, journalism, publishing In France & Monaco
			**079 Newspapers in other geographic areas
	**075 News media, journalism, publishing In Italy & adjacent territories
			*'''080 ]'''
	**076 News media, journalism, publishing In Iberian Peninsula & adjacent islands
			**080 General collections
	**077 News media, journalism, publishing In eastern Europe In Soviet Union
			**081 Collections in American English
	**078 News media, journalism, publishing In Scandinavia
			**082 Collections in English
	**079 News media, journalism, publishing In other languages
			**083 Collections in other Germanic languages
	*'''080 General collections'''
			**084 Collections in French, Occitan, Catalan
	**081 General collections American
			**085 Collections in Italian, Romanian, and related languages
	**082 General collections In English
			**086 Collections in Spanish and Portuguese
	**083 General collections In other Germanic languages
			**087 Collections in Slavic languages
	**084 General collections In French, Provencal, Catalan
			**088 Collections in Scandinavian languages
	**085 General collections In Italian, Romanian, Rhaeto-Romanic
			**089 Collections in other languages
	**086 General collections In Spanish & Portuguese
			*'''090 ]s and rare books'''
	**087 General collections In Slavic languages
			**090 Manuscripts and rare books
	**088 General collections In Scandinavian languages
			**091 Manuscripts
	**089 General collections In other languages
			**092 ]s
	*'''090 Manuscripts & rare books'''
	**091 ]s		**093 ]
			**094 ]
	**092 ]s
			**095 Books notable for ]
	**093 ]
			**096 Books notable for illustrations
	**094 Printed books
	**095 Books notable for ]s		**097 Books notable for ownership or origin
			**098 ], ], and ]
	**096 Books notable for illustrations
	**097 Books notable for ownership or origin
	**098 ], ], ]es
	**099 Books notable for format		**099 Books notable for format
	== 100 &ndash; Philosophy and psychology ==		== Class 100 – Philosophy and psychology ==
	*'''100 ] & ]'''		*'''100 ]'''
			**100 Philosophy and ]
	**101 ]
	**102 Miscellany of philosophy		**101 Theory of philosophy
			**102 Miscellany
	**103 Dictionaries of philosophy
			**103 Dictionaries and encyclopedias
	**''104 Not assigned or no longer used ''
			**104 ''No longer used — formerly ]''
	**105 Serial publications of philosophy
			**105 ]
	**106 Organizations of philosophy
			**106 Organizations and ]
	**107 Education, research in philosophy
			**107 ], ], related topics of philosophy
	**108 Kinds of persons in philosophy
			**108 Groups of ]
	**109 Historical treatment of philosophy
			**109 ] and collected biography
	*'''110 ]'''
	**111 ]		*'''110 ]'''
			**110 Metaphysics
	**''112 Not assigned or no longer used ''
			**111 ]
	**113 Cosmology (])
			**112 ''No longer used — formerly ]''
	**114 ]
	**115 ]		**113 ] (])
	**116 ]		**114 ]
			**115 ]
	**117 Structure
			**116 Change
	**118 Force & Energy
			**117 Structure
	**119 Number & quantity
			**118 ] and ]
	*'''120 ], ], humankind'''
			**119 Number and quantity
	**121 Epistemology (Theory of knowledge)
			*'''120 ]'''
	**122 Causation
			**120 Epistemology, causation, and humankind
	**123 ] & ]
			**121 Epistemology (Theory of knowledge)
	**124 ]
			**122 Causation
	**''125 Not assigned or no longer used ''
			**123 ] and ]
	**126 ]
			**124 ]
	**127 The unconscious & the subconscious
			**125 ''No longer used — formerly ]''
	**128 Humankind
			**126 ]
	**129 Origin & destiny of individual souls
			**127 The unconscious and the subconscious
	*'''130 ] phenomena'''
			**128 ]
	**131 Occult methods for achieving well-being
			**129 Origin and destiny of individual ]
	**''132 Not assigned or no longer used ''
	**133 ] & ]		*'''130 ] and ]'''
			**130 Parapsychology and occultism
	**''134 Not assigned or no longer used ''
			**131 Parapsychological and occult methods for achieving well-being, happiness, success
	**135 ]s & ]
			**132 ''No longer used — formerly "Mental derangements"''
	**''136 Not assigned or no longer used ''
			**133 Specific topics in parapsychology and occultism
	**137 Divinatory ]
			**134 ''No longer used — formerly "] and ]"''
	**138 ]
	**139 ]		**135 ]s and mysteries
			**136 ''No longer used — formerly "Mental characteristics"''
	*'''140 Specific ]s'''
			**137 Divinatory ]
	**141 ] & related systems
	**142 ]		**138 ]
			**139 ]
	**143 ] & ]
			*'''140 ]'''
	**144 ] & related systems
			**140 Specific philosophical schools and viewpoints
	**145 Sensationalism
	**146 ] & related systems		**141 ] and related systems and doctrines
			**142 ]
	**147 ] & related systems
			**143 ] and ]
	**148 ], ], ]
			**144 ] and related systems and doctrines
	**149 Other philosophical systems
			**145 ]
	*'''150 ]'''
			**146 ] and related systems and doctrines
	**''151 Not assigned or no longer used ''
			**147 ] and related systems and doctrines
	**152 ], ], ]s, ]s
			**148 ], ], liberalism, syncretism, and ]
	**153 Mental processes & ]
			**149 Other philosophical systems and doctrines
	**154 ] & ]s
	**155 ] & ]		*'''150 ]'''
			**150 Psychology
	**156 ]
			**151 ''No longer used — formerly "Intellect"''
	**''157 Not assigned or no longer used ''
			**152 Sensory ], ], ]s, and physiological drives
	**158 ]
			**153 Conscious mental processes and ]
	**''159 Not assigned or no longer used ''
			**154 ] and ]s and processes
	*'''160 ]'''
			**155 ] and ]
	**161 ]
			**156 ]
	**162 ]
			**157 ''No longer used — formerly "]s"''
	**''163 Not assigned or no longer used ''
			**158 ]
	**''164 Not assigned or no longer used ''
			**159 ''No longer used — formerly "Will"''
	**165 ] & sources of error
			*'''160 Philosophical ]'''
	**166 ]s
			**160 Philosophical logic
	**167 ]
			**161 ]
	**168 ] & ]
			**162 ]
	**169 ]
			**163–164 ''Not assigned or no longer used''
	*'''170 ] (Moral philosophy)'''
			**165 ] and sources of error
	**171 ]s & ]s
	**172 ] ethics		**166 ]s
			**167 ]
	**173 Ethics of ]
	**174 ] & ]		**168 ] and ]
			**169 ]
	**175 Ethics of ] & ]
			*'''170 ]'''
	**176 Ethics of ] & ]
	**177 Ethics of ]		**170 Ethics (Moral philosophy)
			**171 Ethical systems
	**178 Ethics of ]
			**172 ]
	**179 Other ethical norms
			**173 Ethics of ]
	*'''180 ], ], ]'''
			**174 Occupational ethics
	**181 Oriental philosophy
			**175 Ethics of ], ], public performances, communication
	**182 ]
			**176 Ethics of ] and ]
	**183 ] & ]
			**177 Ethics of ]
	**184 ]
			**178 Ethics of ]
	**185 ]
			**179 Other ethical norms
	**186 ] and ]
			*'''180 ], ], and ]'''
	**187 ]
			**180 Ancient, medieval, eastern philosophy
	**188 ]
	**189 Medieval Western philosophy		**181 Eastern philosophy
			**182 ]
			**183 Sophistic, ], related Greek philosophies
			**184 ]
			**185 ]
			**186 ] and ]
			**187 ]
			**188 ]
			**189 Medieval Western philosophy
	*'''190 Modern ]''' (], ])		*'''190 Modern ]''' (], ])
	**191 Modern Western philosophy United States & Canada		**190 Modern Western and other noneastern philosophy
			**191 ] and ]
	**192 Modern Western philosophy British Isles
	**193 Modern Western philosophy Germany & Austria		**192 ]
			**193 ] and ]
	**194 Modern Western philosophy France
	**195 Modern Western philosophy Italy		**194 ]
			**195 ]
	**196 Modern Western philosophy Spain & Portugal
			**196 Philosophy of ] and Portugal
	**197 Modern Western philosophy Soviet Union
			**197 ]
	**198 Modern Western philosophy Scandinavia
			**198 Philosophy of Scandinavia and Finland
	**199 Modern Western philosophy Other geographical areas
			**199 Philosophy in other geographic areas
	== 200 &ndash; Religion ==		== Class 200 – Religion ==
	*'''200 ]'''		*'''200 ]'''
			**200 Religion
	**201 Philosophy of Christianity
			**201 Religious ], general classes of religion, ] and attitudes, social theology
	**202 Miscellany of Christianity
			**202 ]s
	**203 Dictionaries of Christianity
			**203 Public ] and other practices
	**204 Special topics
			**204 Religious experience, life, practice
	**205 Serial publications of Christianity
			**205 ]
	**206 Organizations of Christianity
			**206 ] and ]
	**207 Education, research in Christianity
			**207 Missions and ]
	**208 Kinds of persons in Christianity
			**208 Sources
	**209 History & geography of Christianity
			**209 ]s and reform movements
	*'''210 ]'''
			*'''210 Philosophy and theory of religion'''
	**211 ]
			**210 Philosophy and theory of religion
	**212 ], attributes of God
			**211 ]
	**213 ]
			**212 ], ways of knowing God, attributes of God
	**214 ]
			**213 ]
	**215 ]
			**214 ]
	**216 ]
			**215 ]
	**''217 Not assigned or no longer used ''
			**216 ''No longer used—formerly ] ''
	**218 Humankind
	**''219 Not assigned or no longer used ''		**217 ''No longer used—formerly ]''
			**218 ]
	*'''220 ]'''
			**219 ''No longer used—formerly ]''
	**221 ]
			*'''220 The ]'''
	**222 Historical books of Old Testament
			**220 Bible
	**223 Poetic books of Old Testament
	**224 Prophetic books of Old Testament		**221 ] (])
			**222 ] of Old Testament
	**225 ]
			**223 ] of Old Testament
	**226 ]s & ]
			**224 ] of Old Testament
	**227 ]
			**225 ]
	**228 ] (Apocalypse)
	**229 ] & ]		**226 ]s and ]
			**227 ]
	*'''230 Christian theology'''
			**228 ] (])
	**231 ]
			**229 ], ], and inter-testamental works
	**232 ] Christ & his family
			*'''230 ]'''
	**233 Humankind
			**230 Christianity
	**234 ] (]) & grace
			**231 ]
	**235 Spiritual beings
			**232 ] and his family
	**236 ]
			**233 Humankind
	**''237 Not assigned or no longer used ''
	**238 ]s & ]s		**234 ] and ]
			**235 Spiritual beings
	**239 ] & polemics
			**236 ]
	*'''240 Christian moral & ]'''
			**237 ''No longer used—formerly Future state ''
	**241 ]
			**238 ]s, confessions of faith, ], and ]s
	**242 Devotional literature
			**239 ] and ]
	**243 ] writings for individuals
			*'''240 Christian practice and observance'''
	**''244 Not assigned or no longer used ''
			**240 Christian moral and devotional theology
	**245 Texts of ]s
	**246 Use of ]		**241 ]
			**242 ]
	**247 ] furnishings & articles
			**243 ] writings for individuals and families
	**248 ]
			**244 ''No longer used—formerly ]''
	**249 Christian observances in family life
			**245 ''No longer used—formerly ]''
	*'''250 Christian ] & local ]'''
			**246 Use of ]
	**251 Preaching (])
			**247 ] furnishings and related articles
	**252 Texts of ]s
			**248 ]
	**253 Pastoral office (])
			**249 Christian observances in family life
	**254 ] government & administration
			*'''250 Christian ]''' and local church
	**255 ] & orders
			**250 Local Christian church and Christian religious orders
	**''256 Not assigned or no longer used ''
			**251 Preaching (])
	**''257 Not assigned or no longer used ''
			**252 Texts of ]s
	**''258 Not assigned or no longer used ''
			**253 Pastoral office and work (])
	**259 Activities of the local church
			**254 ] administration
	*'''260 Christian social theology'''
			**255 ]s and orders
	**261 Social theology
			**256 ''No longer used — formerly Religious societies''
	**262 ]
			**257 ''No longer used — formerly ], libraries, etc.''
	**263 Times, places of ]
			**258 ''No longer used — formerly Parochial medicine''
	**264 Public worship
			**259 Pastoral care of families, of specific groups of people
	**265 ]s, other rites & acts
			*'''260 Social and ecclesiastical theology'''
			**260 Christian social and ecclesiastical theology
			**261 Social theology and interreligious relations and attitudes
			**262 ]
			**263 Days, times, places of ]
			**264 Public worship
			**265 ]s, other rites and acts
	**266 ]		**266 ]
	**267 Associations for religious work		**267 Associations for religious work
	**268 ]		**268 ]
	**269 Spiritual renewal		**269 Spiritual renewal
	*'''270 Christian church history'''		*'''270 History of Christianity'''
			**270 History, geographic treatment, biography of Christianity
	**271 Religious orders in church history
	**272 ]s in church history		**271 Religious congregations and orders in church history
	**273 ] in church history		**272 ]s in church history
			**273 Doctrinal controversies and ]
	**274 ]
	**275 ]		**274 ]
	**276 ]		**275 ]
	**277 ]		**276 ]
	**278 ]		**277 ]
			**278 ]
	**279 Christian church in other areas
			**279 History of Christianity in other areas
	*'''280 ]s & sects'''
			*'''280 ]s'''
	**281 ] & ]
			**280 Denominations and sects of Christian church
	**282 ] Church
	**283 ] churches		**281 ] and ]
			**282 ] Church
	**284 ] of Continental origin
			**283 ] churches
	**285 ], ], ]
			**284 ] denominations of Continental origin (], ])
	**286 ], ], ]
			**285 ] churches, ] churches centered in America, ] churches
	**287 ] & related churches
			**286 ], ], ] churches
	**''288 Not assigned or no longer used ''
			**287 ] churches; churches related to Methodism
	**289 Other denominations & sects
			**288 ''No longer used — formerly ]''
	*'''290 Other & ]s'''
			**289 Other denominations and sects
	**291 Comparative religion
			*'''290 Other religions'''
	**292 Classical (] & ]) religion
			**290 Other religions
	**293 ]
			**291 ''No longer used — formerly Comparative religion''
	**294 Religions of Indic origin
			**292 Classical religion (] and ])
	**295 ] (Mazdaism, Parseeism)
			**293 ]
	**296 ]
			**294 ]
	**297 ] & religions originating in it
			**295 ] (Mazdaism, Parseeism)
	**''298 Not assigned or no longer used ''
			**296 ]
	**299 Other religions
			**297 ], ], and ]
			**298 ''No longer used — formerly ]''
			**299 Religions not provided for elsewhere
	== 300 &ndash; Social sciences ==		== Class 300 – Social sciences ==
	*'''300 ]s'''		*'''300 ]s''', ], and ]
			**300 Social sciences
	**301 ] & ]
			**301 Sociology and anthropology
	**302 ]
	**303 Social processes		**302 ]
			**303 Social processes
	**304 Factors affecting social behavior
			**304 Factors affecting social behavior
	**305 ]s
			**305 ]
	**306 ] & ]s
			**306 ] and ]s
	**307 ]
			**307 ]
	**''308 Not assigned or no longer used ''
			**308 ''No longer used — formerly "Polygraphy"''
	**''309 Not assigned or no longer used ''
			**309 ''No longer used — formerly "]"''
	*'''310 General statistics'''
			*'''310 Statistics'''
	**''311 Not assigned or no longer used ''
			**310 Collections of general statistics
	**''312 Not assigned or no longer used ''
	**''313 Not assigned or no longer used ''		**311 ''No longer used — formerly "Theory and methods"''
			**312 ''No longer used — formerly "Population"''
	**314 General statistics Of Europe
			**313 ''No longer used — formerly "Special topics"''
	**315 General statistics Of Asia
	**316 General statistics Of Africa		**314 General statistics of Europe
	**317 General statistics Of North America		**315 General statistics of Asia
	**318 General statistics Of South America		**316 General statistics of Africa
	**319 General statistics Of other parts of the world		**317 General statistics of North America
			**318 General statistics of South America
	*'''320 ]'''
			**319 General statistics of Australasia, Pacific Ocean islands, Atlantic Ocean islands, Arctic islands, Antarctica
	**321 ] & states
			*'''320 ]'''
	**322 Relation of ] to organized groups
			**320 Political science (Politics and government)
	**323 ] & ]
			**321 ] and states
	**324 The ] process
			**322 Relation of ] to organized groups and their members
	**325 International ] & ]
	**326 ] & ]		**323 ] and ]
			**324 The ] process
	**327 ]
			**325 International ] and ]
	**328 The ] process
			**326 ] and ]
	**''329 Not assigned or no longer used ''
			**327 ]
	*'''330 ]'''
			**328 The ] process
	**331 ]
			**329 ''No longer used— formerly "Political Parties"''
	**332 ]
	**333 ]		*'''330 ]'''
			**330 Economics
	**334 ]s
			**331 ]
	**335 ] & related systems
	**336 ]		**332 ]
	**337 ]		**333 ] and energy
			**334 ]s
	**338 ]
	**339 ] & related topics		**335 ] and related systems
			**336 ]
	*'''340 Law'''
	**341 ]		**337 ]
			**338 ]
	**342 ] & ]
			**339 ] and related topics
	**343 ], ], ], ]
			*'''340 ]'''
	**344 ], ], ], & related law
			**340 Law
	**345 ]
	**346 ]		**341 ]
			**342 ] and ]
	**347 ] & ]s
			**343 ], defense, public property, public finance, ], commerce (]), ]
	**348 ] (Statutes), ]s, ]s
			**344 ], social service, education, cultural law
	**349 ]
			**345 ]
	*'''350 ]'''
			**346 ]
	**351 Of central governments
			**347 ] and ]s
	**352 Of local governments
			**348 ]s, ]s, ]s
	**353 of U.S. federal & state governments
			**349 ], socioeconomic regions, regional intergovernmental organizations
	**354 Of specific central governments
			*'''350 ] and ]'''
	**355 ]
			**350 Public administration and military science
	**356 ] & warfare
			**351 Public administration
	**357 ] & warfare
			**352 General considerations of public administration
	**358 Other specialized forces & services
			**353 Specific fields of public administration
	**359 ] & warfare
			**354 Public administration of economy and environment
	*'''360 ]; association'''
			**355 ]
	**361 General social problems & services
			**356 ] and warfare
	**362 ] problems & services
			**357 ] and warfare
	**363 Other social problems & services
			**358 ] and other specialized forces and warfare; engineering and related services
	**364 ]
			**359 ] and warfare
	**365 ] & related institutions
			*'''360 Social problems and ]'''
	**366 ]
			**360 Social problems and services; associations
	**367 General ]s
			**361 Social problems and services
	**368 ]
			**362 Social problems of and services to groups of people
	**369 Miscellaneous kinds of associations
			**363 Other social problems and services
	*'''370 ]'''
			**364 ]
	**371 School management; special education
			**365 ] and related institutions
	**372 ]
			**366 Secret associations and societies
	**373 ]
			**367 General ]s
	**374 ]
	**375 ]s		**368 ]
			**369 Associations
	**376 Education of women
			*'''370 ]'''
	**377 Schools & religion
			**370 Education
	**378 ]
			**371 Schools and their activities, ]
	**379 Government regulation, control, support
			**372 Primary education (])
	*'''380 ], ], ]'''
			**373 ]
	**381 Internal commerce (])
			**374 ]
	**382 ] (Foreign trade)
			**375 ]
	**383 ]
			**376 ''No longer used — formerly "]" ''
	**384 Communications; ]
			**377 ''No longer used — formerly "Ethical education" ''
	**385 ]
			**378 ] (Tertiary education)
	**386 Inland ] & ] transportation
			**379 Public policy issues in education
	**387 ], ], ]ation
			*'''380 ], ]s and ]'''
	**388 Transportation; Ground transportation
			**380 Commerce, communications transportation
	**'''389 ] & ]'''
			**381 Commerce (Trade)
	*'''390 ], ], ]'''
			**382 ] (Foreign trade)
	**391 ] & ]
			**383 ]
	**392 Customs of life cycle & domestic life
			**384 Communications
	**393 ]
			**385 ]
	**394 ]
			**386 Inland ] and ] transportation
	**395 Etiquette (])
			**387 ], ], ]ation
	**''396 Not assigned or no longer used ''
			**388 Transportation
	**''397 Not assigned or no longer used ''
			**389 ] and ]
	**398 Folklore
	**399 Customs of war & ]		*'''390 ], ] and ]'''
			**390 Customs, etiquette, folklore
			**391 ] and ]
			**392 Customs of life cycle and domestic life
			**393 ]
			**394 ]
			**395 Etiquette (])
			**396 ''No longer used — formerly "Women's position and treatment"''
			**397 ''No longer used — formerly "] studies" ''
			**398 ]
			**399 Customs of war and ]
	== 400 &ndash; Language ==		== Class 400 – Language ==
	*'''400 ]'''		*'''400 ]'''
			**400 Language
	**401 ] & theory
			**401 ] and theory, international languages
	**402 Miscellany
			**402 Miscellany
	**403 ] & encyclopedias
			**403 ], ], concordances
	**404 Special topics
			**404 Special topics of language
	**405 Serial publications
			**405 Serial publications
	**406 Organizations & management
			**406 Organizations and management
	**407 ], research, related topics
			**407 ], research, related topics
	**408 With respect to kinds of persons
			**408 Groups of people
	**409 Geographical & persons treatment
			**409 Geographic treatment and biography
	*'''410 ]'''
			*'''410 ]'''
	**411 ]s
			**410 Linguistics
	**412 ]
			**411 ]s of standard forms of languages
	**413 ]
			**412 ] of standard forms of languages
	**414 ]
			**413 ] of standard forms of languages
	**415 Structural systems (])
			**414 ] and phonetics of standard forms of languages
	**''416 Not assigned or no longer used ''
			**415 ] of standard forms of languages
	**417 ] & ]
	**418 Standard usage; ]		**416 ''No longer used — formerly "]" ''
			**417 ] and ]
	**419 Verbal language not spoken or written
			**418 Standard usage (])
	*'''420 ] & ]'''
			**419 ]s
	**421 English ] & ]
			*'''420 ] and ] languages'''
	**422 English etymology
			**420 English and ]
	**423 English dictionaries
			**421 ], ], phonetics of standard English
	**''424 Not assigned or no longer used ''
			**422 Etymology of standard English
	**425 ]
			**423 Dictionaries of standard English
	**''426 Not assigned or no longer used ''
			**424 ''No longer used — formerly "English ]es"''
	**427 ]
			**425 ] of standard English
	**428 Standard English usage
			**426 ''No longer used — formerly "]"''
	**429 Old English (Anglo-Saxon)
			**427 Historical and geographical variations, modern nongeographic variations of English
	*'''430 ]; ]'''
			**428 Standard English usage (])
	**431 ] & ]
			**429 ] (Anglo-Saxon)
	**432 German etymology
			*'''430 ] and related languages'''
	**433 German dictionaries
			**430 German and related languages
	**''434 Not assigned or no longer used ''
			**431 ], ], phonetics of standard German
	**435 ]
			**432 Etymology of standard German
	**''436 Not assigned or no longer used ''
			**433 Dictionaries of standard German
	**437 ]
			**434 ''Not assigned or no longer used ''
	**438 Standard German usage
			**435 ] of standard German
	**439 Other Germanic languages
			**436 ''Not assigned or no longer used ''
	*'''440 ]; ]'''
			**437 Historical and geographic variations, modern nongeographic variations of German
	**441 ] & ]
			**438 Standard German usage (Prescriptive linguistics)
	**442 French etymology
			**439 Other Germanic languages
	**443 French dictionaries
			*'''440 ] and related languages'''
	**''444 Not assigned or no longer used ''
	**445 ]		**440 French and related Romance languages
			**441 ], ], phonetics of standard French
	**''446 Not assigned or no longer used ''
			**442 Etymology of standard French
	**447 ]
			**443 Dictionaries of standard French
	**448 Standard French usage
			**444 ''Not assigned or no longer used ''
	**449 ] & ]
			**445 ] of standard French
	*'''450 ], ], ]'''
			**446 ''Not assigned or no longer used ''
	**451 Italian writing system & ]
			**447 Historical and geographic variations, modern nongeographic variations of French
	**452 Italian etymology
			**448 Standard French usage (Prescriptive linguistics)
	**453 Italian dictionaries
			**449 Occitan ], ]
	**''454 Not assigned or no longer used ''
			*'''450 ], ] and related languages'''
	**455 ]
			**450 Italian, ], Romanian, ], ], ]
	**''456 Not assigned or no longer used ''
			**451 Writing systems, ], phonetics of standard Italian
	**457 ]
			**452 Etymology of standard Italian
	**458 Standard Italian usage
			**453 Dictionaries of standard Italian
	**459 Romanian & Rhaeto-Romanic
			**454 ''Not assigned or no longer used ''
	*'''460 ] & ]s'''
			**455 ] of standard Italian
	**461 Spanish ] & ]
			**456 ''Not assigned or no longer used ''
	**462 Spanish etymology
			**457 Historical and geographic variations, modern nongeographic variations of Italian
	**463 Spanish dictionaries
			**458 Standard Italian usage (Prescriptive linguistics)
	**''464 Not assigned or no longer used ''
			**459 Romanian, Rhaetian, Sardinian, Corsican
	**465 ]
			*'''460 ], ], Galician'''
	**''466 Not assigned or no longer used ''
			**460 Spanish, Portuguese, Galician
	**467 ]
			**461 ], ], phonetics of standard Spanish
	**468 Standard Spanish usage
			**462 Etymology of standard Spanish
	**469 Portuguese
			**463 Dictionaries of standard Spanish
	*'''470 ]; ]'''
			**464 ''Not assigned or no longer used ''
	**471 ] writing & phonology
			**465 ] of standard Spanish
	**472 ]
			**466 ''Not assigned or no longer used ''
	**473 Classical Latin dictionaries
			**467 Historical and geographic variations, modern nongeographic variations of Spanish
	**''474 Not assigned or no longer used ''
			**468 Standard Spanish usage (Prescriptive linguistics)
	**475 Classical ]
			**469 ]
	**''476 Not assigned or no longer used ''
	**477 ], Postclassical, ]		*'''470 ] and ]'''
			**470 Latin and related Italic languages
	**478 Classical Latin usage
			**471 Writing systems, phonology, phonetics of ]
	**479 Other Italic languages
			**472 Etymology of classical Latin
	*'''480 Hellenic languages; ]'''
			**473 Dictionaries of classical Latin
	**481 Classical Greek writing & ]
			**474 ''Not assigned or no longer used ''
	**482 Classical Greek etymology
			**475 ] of classical Latin
	**483 Classical Greek dictionaries
	**''484 Not assigned or no longer used ''		**476 ''Not assigned or no longer used ''
			**477 ], postclassical, ]
	**485 Classical Greek grammar
			**478 Classical Latin usage (Prescriptive linguistics)
	**''486 Not assigned or no longer used ''
			**479 Other Italic languages
	**487 Preclassical & postclassical Greek
			*'''480 Classical and modern ]'''
	**488 Classical Greek usage
	**489 Other Hellenic languages		**480 Classical Greek and related Hellenic languages
			**481 Writing systems, ], phonetics of classical Greek
	*'''490 Other languages'''
			**482 Etymology of classical Greek
	**491 East Indo-European & ]
			**483 Dictionaries of classical Greek
	**492 ]; ]
			**484 ''Not assigned or no longer used ''
	**493 Non-Semitic Afro-Asiatic languages
			**485 Grammar of classical Greek
	**494 ], ], ]
			**486 ''Not assigned or no longer used ''
	**495 Languages of East & Southeast Asia
			**487 ] and ]
	**496 African languages
			**488 Classical Greek usage (Prescriptive linguistics)
	**497 ]
			**489 Other Hellenic languages
	**498 ]
	**499 Miscellaneous languages		*'''490 Other languages'''
			**490 Other languages
			**491 East Indo-European and ]
			**492 ]
			**493 Non-Semitic Afro-Asiatic languages
			**494 ], ], Hyperborean, ], miscellaneous languages of south Asia
			**495 Languages of East and Southeast Asia
			**496 ]
			**497 ]
			**498 ]
			**499 Non-Austronesian languages of Oceania, Austronesian languages, miscellaneous languages
	== 500 &ndash; Science ==		== Class 500 – Science ==
	*'''500 ] & ]'''		*'''500 ]'''
			**500 ] and mathematics
	**501 Philosophy & theory
			**501 Philosophy and theory
	**502 Miscellany
			**502 Miscellany
	**503 Dictionaries & encyclopedias
			**503 Dictionaries, ]s, ]s
	**''504 Not assigned or no longer used ''
			**504 ''Not assigned or no longer used ''
	**505 Serial publications
			**505 Serial publications
	**506 Organizations & management
			**506 Organizations and management
	**507 Education, research, related topics
			**507 Education, research, related topics
	**508 ]
			**508 ]
	**509 ], ], persons treatment
			**509 ], ], biography
	*'''510 Mathematics'''
			*'''510 ]'''
	**511 General principles
			**510 Mathematics
	**512 ] & ]
			**511 General principles of mathematics
	**513 ]
			**512 ]
	**514 ]
			**513 ]
	**515 ]
	**516 ]		**514 ]
			**515 ]
	**''517 Not assigned or no longer used ''
			**516 ]
	**''518 Not assigned or no longer used ''
			**517 ''Not assigned or no longer used ''
	**519 ] & ]
			**518 ]
	*'''520 ] & allied sciences'''
			**519 ] and ]
	**521 ]
			*'''520 ]'''
	**522 Techniques, equipment, materials
			**520 ] and allied sciences
	**523 Specific celestial bodies & phenomena
			**521 ]
	**''524 Not assigned or no longer used ''
			**522 Techniques, procedures, apparatus, equipment, materials
	**525 ] (Astronomical geography)
			**523 Specific ] and phenomena
	**526 Mathematical geography
			**524 ''Not assigned or no longer used ''
	**527 ]
			**525 ] (Astronomical geography)
	**528 ]
			**526 Mathematical geography
	**529 ]
			**527 ]
	*'''530 ]'''
			**528 ]
	**531 Classical ]; ]
			**529 ]
	**532 ]; ]
			*'''530 ]'''
	**533 Gas mechanics
			**530 Physics
	**534 ] & related ]
			**531 Classical ]
	**535 ] & paraphotic phenomena
	**536 ]		**532 ]
			**533 ] (Gas mechanics)
	**537 ] & ]
			**534 ] and related ]
	**538 ]
			**535 ] and related radiation
	**539 Modern physics
			**536 ]
	*'''540 ] & allied sciences'''
			**537 ] and ]
	**541 ] & ]
			**538 ]
	**542 Techniques, equipment, materials
	**543 ]		**539 ]
			*'''540 ]'''
	**544 ]
			**540 Chemistry and allied sciences
	**545 ]
	**546 ]		**541 ]
			**542 Techniques, procedures, apparatus, equipment, materials
	**547 ]
	**548 ]		**543 ]
			**544 ''No longer used — formerly "]"''
	**549 ]
			**545 ''No longer used — formerly "]"''
	*'''550 ]'''
			**546 ]
	**551 ], ], ]
	**552 ]		**547 ]
	**553 ]		**548 ]
			**549 ]
	**554 Earth sciences of Europe
	**555 Earth sciences of Asia		*'''550 ] and ]'''
	**556 Earth sciences of Africa		**550 Earth sciences
			**551 ], ], ]
	**557 Earth sciences of North America
			**552 ]
	**558 Earth sciences of South America
			**553 ]
	**559 Earth sciences of other areas
			**554 Earth sciences of Europe
	*'''560 ]; ]'''
			**555 Earth sciences of Asia
	**561 ]
			**556 Earth sciences of Africa
	**562 ] invertebrates
			**557 Earth sciences of North America
	**563 Fossil primitive phyla
			**558 Earth sciences of South America
	**564 Fossil Mollusca & Molluscoidea
			**559 Earth sciences of Australasia, Pacific Ocean islands, Atlantic Ocean islands, Arctic islands, Antarctica, extraterrestrial worlds
	**565 Other fossil invertebrates
			*'''560 ]s and prehistoric life'''
	**566 Fossil Vertebrata (Fossil Craniata)
			**560 ]
	**567 Fossil cold-blooded vertebrates
			**561 ], fossil microorganisms
	**568 Fossil Aves (Fossil birds)
	**569 Fossil Mammalia		**562 Fossil invertebrates
			**563 Miscellaneous fossil marine and seashore invertebrates
	*'''570 ]'''
			**564 Fossil Mollusca and Molluscoidea
	**''571 Not assigned or no longer used ''
			**565 Fossil Arthropoda
	**572 ]
			**566 Fossil Chordata
	**573 ]
			**567 Fossil cold-blooded vertebrates
	**574 ]
			**568 Fossil Aves (birds)
	**575 ] & ]
			**569 Fossil Mammalia
	**576 ]
			*'''570 ]'''
	**577 General nature of life
			**570 Biology
	**578 ] in ]
			**571 ] and related subjects
	**579 Collection and preservation
			**572 ]
	*'''580 Botanical sciences'''
			**573 Specific physiological systems in animals, regional histology and physiology in animals
	**581 ]
			**574 ''Not assigned or no longer used''
	**582 ] (Seed-bearing plants)
			**575 Specific parts of and ]
	**583 ]es
			**576 ] and ]
	**584 ]es
			**577 ]
	**585 Gymnospermae (])
			**578 ] of ]s and related subjects
	**586 ] (Seedless plants)
			**579 Natural history of ], ], ]
	**587 ] (Vascular cryptograms)
			*'''580 Plants'''
	**588 ]
			**580 Plants
	**589 ] & ]
			**581 Specific topics in natural history of ]s
	*'''590 Zoological sciences'''
			**582 Plants noted for specific vegetative characteristics and ]s
	**591 ]
			**583 Magnoliopsida (]es)
	**592 ]s
			**584 Liliopsida (]es)
	**593 ], ]ata, related phyla
			**585 Pinophyta (]s)
	**594 ]a & Molluscoidea
			**586 ] (Seedless plants)
	**595 Other ]s
			**587 ]
	**596 Vertebrata (], ]s)
			**588 ]
	**597 Cold-blooded vertebrates ]es
			**589 ''No longer used—formerly ]''
	**598 ] (Birds)
			*'''590 ]s (])'''
			**590 Animals
			**591 Specific topics in natural history of animals
			**592 ]s
			**593 Miscellaneous marine and seashore invertebrates
			**594 ]a and Molluscoidea
			**595 ]
			**596 ]
			**597 ] vertebrates
			**598 ] (Birds)
	**599 ]ia (Mammals)		**599 ]ia (Mammals)
	== 600 &ndash; Technology ==		== Class 600 – Technology ==
	*'''600 ] (Applied sciences)'''		*'''600 ]'''
			**600 Technology (Applied sciences)
	**601 Philosophy & theory
			**601 Philosophy and theory
	**602 Miscellany
			**602 Miscellany
	**603 Dictionaries & encyclopedias
			**603 Dictionaries, encyclopedias, concordances
	**604 Special topics
			**604 Technical drawing, hazardous materials technology; groups of people
	**605 Serial publications
			**605 Serial publications
	**606 Organizations
			**606 Organizations
	**607 Education, research, related topics
			**607 Education, research, related topics
	**608 ] & ]s
			**608 ]s
	**609 ], areas, persons treatment
			**609 ], geographic treatment, biography
	*'''610 Medical sciences; ]'''
			*'''610 ] and ]'''
	**611 ], ], ]
			**610 Medicine and health
	**612 ]
			**611 ], ], ]
	**613 Promotion of ]
			**612 ]
	**614 Incidence & prevention of disease
			**613 Personal health and safety
	**615 ] & ]
			**614 ]; incidence of injuries, wounds, disease; public preventive medicine
	**616 ]s
			**615 ] and ]
	**617 ] & related medical specialities
			**616 ]
	**618 ] & other medical specialities
			**617 ], regional medicine, ], ], ], ]
	**619 ]
			**618 ], obstetrics, pediatrics, geriatrics
	*'''620 ] & allied operations'''
			**619 ''No longer used—formerly ]''
	**621 ]
			*'''620 ]'''
	**622 ] & related operations
			**620 Engineering and applied operations
	**623 ] & ]
	**624 ]		**621 ]
			**622 ] and related operations
	**625 Engineering of ]s, ]s
			**623 ] and ]
	**''626 Not assigned or no longer used ''
	**627 ]		**624 ]
			**625 Engineering of ]s, ]s
	**628 Sanitary & municipal engineering
			**626 ''Not assigned or no longer used ''
	**629 Other branches of engineering
			**627 ]
	*'''630 ]'''
			**628 ]
	**631 Techniques, ], materials
			**629 Other branches of engineering
	**632 Plant injuries, ], ]s
			*'''630 ]'''
	**633 ] & plantation ]s
			**630 Agriculture and related technologies
	**634 ]s, ]s, ]
			**631 Specific techniques; apparatus, ], materials
	**635 Garden crops (])
			**632 Plant injuries, ], ]s
	**636 ]
			**633 ] and ] ]s
	**637 Processing ] & related products
			**634 ]s, ]s, ]
	**638 Insect culture
			**635 Garden crops (])
	**639 ], ], ]
			**636 ]
	*'''640 ] & family living'''
	**641 ] & ]		**637 Processing ] and related products
			**638 Insect culture
	**642 ]s & table service
			**639 ], ], ], related technologies
	**643 ] & household equipment
			*'''640 Home and family management'''
	**644 ] utilities
			**640 Home and family management
	**645 ]
	**646 ], ], personal living		**641 ] and ]
			**642 ]s and table service
	**647 ]s
			**643 ] and household equipment
	**648 ]
			**644 ] utilities
	**649 ] & ] of sick
			**645 ]
	*'''650 ] & auxiliary services'''
			**646 ], ], management of personal and family life
	**651 ] services
			**647 ]s (Institutional housekeeping)
	**652 Processes of written communication
			**648 ]
	**653 ]
			**649 ]; ] of people with disabilities and illnesses
	**''654 Not assigned or no longer used ''
			*'''650 ] and public relations'''
	**''655 Not assigned or no longer used ''
			**650 Management and auxiliary services
	**''656 Not assigned or no longer used ''
	**657 ]		**651 ] services
			**652 Processes of written communication
	**658 General management
			**653 ]
	**659 ] & ]
			**654–656 ''Not assigned or no longer used''
	*'''660 ]'''
			**657 ]
	**661 Industrial chemicals technology
			**658 General management
	**662 ], ] technology
			**659 ] and ]
	**663 Beverage technology
			*'''660 ]'''
	**664 ]
			**660 Chemical engineering and related technologies
	**665 Industrial ]s, ]s, ]es, gases
			**661 Technology of industrial chemicals
	**666 ] & allied technologies
	**667 ], ], related technologies		**662 Technology of ], ], related products
			**663 Beverage technology
	**668 Technology of other organic products
	**669 ]		**664 ]
			**665 Technology of industrial ]s, ]s, ]es, gases
	*'''670 ]'''
			**666 ] and allied technologies
	**671 ] & metal products
			**667 ], ], coating, related technologies
	**672 ], ], other ]s
			**668 Technology of other organic products
	**673 Nonferrous ]s
			**669 ]
	**674 ] processing, ] products, ]
			*'''670 ]'''
	**675 ] & ] processing
			**670 Manufacturing
	**676 ]
			**671 ] processes and primary metal products
	**677 ]s
			**672 ], ], other ]s
	**678 ]s & elastomer products
			**673 Nonferrous ]s
	**679 Other products of specific materials
			**674 ] processing, ] products, ]
	*'''680 Manufacture for specific uses'''
			**675 ] and ] processing
	**681 ]s & other devices
			**676 ]
	**682 Small ] work (]ing)
			**677 ]s
	**683 ] & ]
			**678 ]s and elastomer products
	**684 Furnishings & home ]s
			**679 Other products of specific kinds of materials
	**685 Leather, fur, related products
			*'''680 Manufacture for specific uses'''
	**686 ] & related activities
			**680 Manufacture of products for specific uses
	**687 Clothing
			**681 ] and other devices
	**688 Other final products & ]
			**682 Small ] work (]ing)
	**''689 Not assigned or no longer used ''
			**683 ] and ]
	*690 ]s
	**691 Building ]s		**684 Furnishings and home ]s
			**685 Leather and fur goods, and related products
	**692 Auxiliary construction practices
			**686 ] and related activities
	**693 Specific materials & purposes
			**687 ] and accessories
	**694 Wood construction; ]
			**688 Other final products, and ] technology
	**695 ] covering
			**689 ''Not assigned or no longer used ''
	**696 Utilities
			*'''690 Construction of ]s'''
	**697 ], ], ]
			**690 Construction of buildings
	**698 Detail finishing
			**691 Building materials
	**''699 Not assigned or no longer used''
			**692 Auxiliary construction practices
			**693 Construction in specific types of materials and for specific purposes
			**694 ]
			**695 ] covering
			**696 Utilities
			**697 ], ], ] engineering
			**698 Detail finishing
			**699 ''Not assigned or no longer used''
	== 700 &ndash; Arts and recreation ==		== Class 700 – Arts and recreation ==
	*'''700 The ]'''		*'''700 ]'''
			**700 The Arts
	**701 ] & ]
			**701 ] and ] of fine and decorative arts
	**702 Miscellany
			**702 Miscellany of fine and decorative arts
	**703 Dictionaries & encyclopedias
			**703 Dictionaries, encyclopedias, concordances of fine and decorative arts
	**704 Special topics
			**704 Special topics in fine and decorative arts
	**705 ]
			**705 ] of fine and decorative arts
	**706 Organizations & management
			**706 Organizations and management of fine and decorative arts
	**707 Education, research, related topics
			**707 Education, research, related topics of fine and decorative arts
	**708 ]
			**708 ] of fine and decorative arts
	**709 ], areas, persons treatment
			**709 ], geographic treatment, biography
	*'''710 Civic & ]'''
	**711 ] (Civic art)		*'''710 Area planning and ]'''
			**710 Area planning and landscape architecture
	**712 ]
			**711 ] (Civic art)
	**713 Landscape architecture of trafficways
			**712 ] (Landscape design)
	**714 ] features
			**713 Landscape architecture of trafficways
	**715 ]
			**714 ]s in landscape architecture
	**716 ] plants
			**715 ]s in landscape architecture
	**717 Structures
			**716 ]s in landscape architecture
	**718 Landscape design of cemeteries
	**719 Natural ]s		**717 Structures in landscape architecture
			**718 Landscape design of cemeteries
	*'''720 ]'''
			**719 Natural ]s
	**721 ]
			*'''720 ]'''
	**722 Architecture to ca. 300
	**723 Architecture from ca. 300 to 1399		**720 Architecture
			**721 Architectural materials and structural elements
	**724 Architecture from 1400
			**722 Architecture from earliest times to {{Circa|300}}
	**725 Public structures
			**723 Architecture from {{Circa|300}} to 1399
	**726 ]
			**724 Architecture from 1400
	**727 Buildings for education & research
			**725 Public structures
	**728 ]
			**726 ]
	**729 ] & ]
			**727 Buildings for educational and research purposes
	*'''730 ]; ]'''
			**728 ]
	**731 Processes, forms, subjects of sculpture
			**729 ] and ] of structures and accessories
	**732 Sculpture to ca. 500
	**733 ]		*'''730 ], ceramics and metalwork'''
	**734 Sculpture from ca. 500 to 1399		**730 Sculpture and related arts
			**731 Processes, forms, subjects of sculpture
	**735 Sculpture from 1400
			**732 Sculpture from earliest times to {{Circa|500}}, sculpture of non-literate peoples
	**736 ] & carvings
			**733 ]
	**737 ] & ]
			**734 Sculpture from ca 500 to 1399
	**738 ]
			**735 Sculpture from 1400
	**739 Art metalwork
			**736 ] and carvings
	*'''740 ] & ]s'''
			**737 ] and ]
	**741 Drawing & drawings
			**738 ]
	**742 ]
			**739 Art metalwork
	**743 Drawing & drawings by subject
			*'''740 Graphic arts and ]s'''
	**''744 Not assigned or no longer used ''
	**745 Decorative arts		**740 Graphic arts
			**741 Drawing and drawings
	**746 ]s
			**742 ] in drawing
	**747 ]
			**743 Drawing and drawings by subject
	**748 ]
			**744 Communication design and visual design (proposed<ref>{{cite web |title=EPC 143-S74.1 Graphic design and communication design |url=https://drive.google.com/file/d/1cshboqu6h7Ppe2J4ZXz2pqvwaQgEGmAt/view |publisher=OCLC |access-date=2023-01-29}}</ref>)
	**749 ] & accessories
			**745 Decorative arts
	*'''750 ] & ]'''
			**746 ]
	**751 Techniques, equipment, forms
	**752 ]		**747 ]
			**748 ]
	**753 ], ], ], ]
			**749 ] and accessories
	**754 ]
			*'''750 ]'''
	**755 ]
			**750 Painting and ]
	**''756 Not assigned or no longer used ''
			**751 Techniques, procedures, apparatus, equipment, materials, forms
	**757 Human figures & their parts
			**752 ]
	**758 Other subjects
			**753 ]ism, ], ], ]
	**759 ], areas, persons treatment
			**754 ]
	*'''760 ]; ] & prints'''
			**755 ]
	**761 Relief processes (])
	**''762 Not assigned or no longer used ''		**756 ''Not assigned or no longer used ''
			**757 Human figures
	**763 ] (Planographic) processes
			**758 Nature, architectural subjects and cityscapes, other specific subjects
	**764 ] & ]
			**759 ], geographic treatment, biography
	**765 Metal ]
			*'''760 ] and prints'''
	**766 ]ing & related processes
			**760 Printmaking and prints
	**767 ] & ]
			**761 Relief processes (])
	**''768 Not assigned or no longer used ''
			**762 ''Not assigned or no longer used ''
	**'''769 Prints'''
			**763 ] processes (Planographic processes)
	*770 ] & photographs
			**764 ] and ]
	**771 ], ], materials
			**765 ]
	**772 Metallic salt processes
			**766 ]ing, aquatinting, and related processes
	**773 Pigment processes of printing
	**774 ]		**767 ] and ]
	**''775 Not assigned or no longer used ''		**768 ''Not assigned or no longer used ''
			**769 Prints
	**''776 Not assigned or no longer used ''
			*'''770 ], computer art, film, video'''
	**''777 Not assigned or no longer used ''
	**778 ]		**770 Photography, computer art, cinematography, videography
			**771 ], procedures, apparatus, ], materials
	**779 ]
			**772 Metallic salt processes
	*'''780 ]'''
			**773 Pigment processes of printing
	**781 ] & ]s
			**774 ''No longer used—formerly ]''
	**782 ]
			**775 ''No longer used—formerly ]''
	**783 Music for single voices; The ]
			**776 ] (Digital art)
	**784 ]s & ]
			**777 ] and ]
	**785 ]
			**778 Specific fields and special kinds of photography
	**786 ] & other instruments
			**779 ]
	**787 ] (Chordophones)
			*'''780 ]'''
	**788 ]s (Aerophones)
			**780 Music
	**''789 Not assigned or no longer used ''
			**781 ] and ]s
	*'''790 Recreational & ]'''
			**782 ]
	**791 Public performances
			**783 Music for single voices
	**792 Stage presentations
			**784 ]s and ] and their music
	**793 ]s & amusements
			**785 Ensembles with only one instrument per part
	**794 Indoor games of skill
			**786 ], mechanical, electrophonic, percussion instruments
	**795 ]
			**787 ] (Chordophones)
	**796 Athletic & outdoor sports & games
			**788 ]s (Aerophones)
	**797 Aquatic & air sports
			**789 ''Not assigned or no longer used ''
	**798 ] & animal racing
			*'''790 ], games and entertainment'''
			**790 Recreational and performing arts
			**791 Public performances
			**792 Stage presentations
			**793 ] and amusements
			**794 Indoor games of skill
			**795 Games of chance
			**796 Athletic and outdoor sports and games
			**797 Aquatic and air sports
			**798 ] and animal racing
	**799 ], ], ]		**799 ], ], ]
	== 800 &ndash; Literature ==		== Class 800 – Literature ==
	*'''800 ] & ]'''		*'''800 ], ] and ]'''
			**800 Literature (]) and rhetoric
	**801 Philosophy & theory
			**801 Philosophy and theory
	**802 Miscellany
			**802 Miscellany
	**803 Dictionaries & encyclopedias
			**803 Dictionaries, encyclopedias, concordances
	**''804 Not assigned or no longer used ''
			**804 ''Not assigned or no longer used ''
	**805 ]
			**805 ]
	**806 Organizations
			**806 Organizations and management
	**807 Education, research, related topics
			**807 Education, research, related topics
	**808 Rhetoric & collections of literature
			**808 Rhetoric and collections of literary texts from more than two literatures
	**809 ] & ]
			**809 ], description, critical appraisal of more than two literatures
	*'''810 ] in English'''
			*'''810 ] in English'''
	**811 Poetry
			**810 American literature in English
	**812 Drama
			**811 American ] in English
	**813 Fiction
			**812 American drama in English
	**814 Essays
			**813 American fiction in English
	**815 Speeches
			**814 American essays in English
	**816 Letters
			**815 American speeches in English
	**817 Satire & humor
			**816 American letters in English
	**818 Miscellaneous writings
			**817 American humor and satire in English
	**''819 Not assigned or no longer used ''
			**818 American miscellaneous writings in English
	*'''820 ] & ]s'''
			**819 ''No longer used—formerly Puzzle activities''
	**821 English poetry
			*'''820 ] and ]s'''
	**822 English drama
			**820 English and ]
	**823 English fiction
	**824 English essays		**821 English poetry
	**825 English speeches		**822 ]
	**826 English letters		**823 English fiction
	**827 English satire & humor		**824 English essays
	**828 English miscellaneous writings		**825 English speeches
	**829 Old English (Anglo-Saxon)		**826 English letters
			**827 English humor and satire
	*'''830 Literatures of Germanic languages'''
			**828 English miscellaneous writings
	**831 German poetry
			**829 Old English (Anglo-Saxon) literature
	**832 German drama
			*'''830 ] and related literatures'''
	**833 German fiction
			**830 German literature and literatures of related languages
	**834 German essays
	**835 German speeches		**831 ]
	**836 German letters		**832 German drama
	**837 German satire & humor		**833 German fiction
	**838 German miscellaneous writings		**834 German essays
			**835 German speeches
	**839 Other Germanic literatures
			**836 German letters
	*'''840 Literatures of Romance languages'''
			**837 German humor and satire
	**841 French poetry
			**838 German miscellaneous writings
	**842 French drama
			**839 Other Germanic literatures
	**843 French fiction
	**844 French essays		*'''840 French and related literatures'''
			**840 French literature and literatures of related Romance languages
	**845 French speeches
	**846 French letters		**841 ]
	**847 French satire & humor		**842 French drama
	**848 French miscellaneous writings		**843 French fiction
			**844 French essays
	**849 Provencal & Catalan
			**845 French speeches
	*'''850 ], ], Rhaeto-Romanic'''
			**846 French letters
	**851 Italian poetry
			**847 French humor and satire
	**852 Italian drama
			**848 French miscellaneous writings
	**853 Italian fiction
			**849 ], ], Franco-Provençal literatures
	**854 Italian essays
			*'''850 ], ] and related literatures'''
	**855 Italian speeches
			**850 Literatures of Italian, Dalmatian, Romanian, Rhaetian, Sardinian, Corsican languages
	**856 Italian letters
	**857 Italian satire & humor		**851 ]
	**858 Italian miscellaneous writings		**852 Italian drama
			**853 Italian fiction
	**859 Romanian & Rhaeto-Romanic
			**854 Italian essays
	*'''860 ] & ]s'''
			**855 Italian speeches
	**861 Spanish poetry
			**856 Italian letters
	**862 Spanish drama
			**857 Italian humor and satire
	**863 Spanish fiction
			**858 Italian miscellaneous writings
	**864 Spanish essays
			**859 Literatures of Romanian, Rhaetian, Sardinian, Corsican languages
	**865 Spanish speeches
			*'''860 ], ], Galician literatures'''
	**866 Spanish letters
			**860 Literatures of Spanish, Portuguese, Galician languages
	**867 Spanish satire & humor
	**868 Spanish miscellaneous writings		**861 ]
			**862 Spanish drama
	**869 Portuguese
			**863 Spanish fiction
	*'''870 Italic literatures; ]'''
			**864 Spanish essays
	**871 Latin poetry
			**865 Spanish speeches
	**872 Latin dramatic poetry & drama
			**866 Spanish letters
	**873 Latin epic poetry & fiction
			**867 Spanish humor and satire
	**874 Latin lyric poetry
			**868 Spanish miscellaneous writings
	**875 Latin speeches
			**869 Literatures of Portuguese and Galician languages
	**876 Latin letters
			*'''870 ] and Italic literatures'''
	**877 Latin satire & humor
			**870 Latin literature and literatures of related Italic languages
	**878 Latin miscellaneous writings
			**871 ]
	**879 Literatures of other Italic languages
			**872 Latin dramatic poetry and drama
	*'''880 Hellenic literatures; Classical Greek'''
	**881 Classical Greek poetry		**873 Latin epic poetry and fiction
			**874 Latin lyric poetry
	**882 Classical Greek drama
			**875 Latin speeches
	**883 Classical Greek epic poetry & fiction
			**876 Latin letters
	**884 Classical Greek lyric poetry
			**877 Latin humor and satire
	**885 Classical Greek speeches
			**878 Latin miscellaneous writings
	**886 Classical Greek letters
			**879 Literatures of other Italic languages
	**887 Classical Greek satire & humor
	**888 Classical Greek miscellaneous writings		*'''880 Classical and modern Greek literatures'''
	**889 ]		**880 Classical Greek literature and literatures of related Hellenic languages
			**881 Classical Greek poetry
	*'''890 Literatures of other languages'''
			**882 Classical Greek drama
	**891 East Indo-European & Celtic
			**883 Classical Greek epic poetry and fiction
	**892 Afro-Asiatic literatures Semitic
			**884 Classical Greek lyric poetry
	**893 Non-Semitic Afro-Asiatic literatures
			**885 Classical Greek speeches
	**894 Ural-Altaic, Paleosiberian, Dravidian
			**886 Classical Greek letters
	**895 Literatures of East & Southeast Asia
			**887 Classical Greek humor and satire
	**896 African literatures
			**888 Classical Greek miscellaneous writings
	**897 North American native literatures
			**889 ]
	**898 South American native literatures
	**899 Other literatures		*'''890 Other literatures'''
			**890 Literatures of other specific languages and language families
			**891 East Indo-European and ] literatures
			**892 ] literatures
			**893 Non-Semitic Afro-Asiatic literatures
			**894 Literatures of Altaic, Uralic, Hyperborean, ] languages; literatures of miscellaneous languages of South Asia
			**895 Literatures of East and Southeast Asia
			**896 African literatures
			**897 Literatures of North American native languages
			**898 Literatures of South American native languages
			**899 Literatures of non-Austronesian languages of Oceania, of Austronesian languages, of miscellaneous languages
	== 900 &ndash; History and geography ==		== Class 900 – History and geography ==
	*'''900 ] & ]'''		*'''900 ]'''
			**900 History, geography, and auxiliary disciplines
	**901 Philosophy & theory
			**901 Philosophy and theory of history
	**902 Miscellany
			**902 Miscellany of history
	**903 Dictionaries & encyclopedias
			**903 Dictionaries, encyclopedias, concordances of history
	**904 Collected accounts of events
			**904 Collected accounts of events
	**905 Serial publications
			**905 Serial publications of history
	**906 Organizations & management
			**906 Organizations and management of history
	**907 Education, research, related topics
			**907 Education, research, related topics of history
	**908 With respect to kinds of persons
			**908 History with respect to groups of people
	**909 ]
			**909 ]
	*'''910 Geography & ]'''
			*'''910 ] and ]'''
	**911 ]
			**910 Geography and travel
	**912 ]
	**913 ]		**911 ]
			**912 ] and of extraterrestrial worlds
	**914 ]
			**913 Geography of and travel in the ]
	**915 ]
			**914 Geography of and travel in ]
	**916 ]
			**915 Geography of and travel in ]
	**917 ]
			**916 Geography of and travel in ]
	**918 ]
			**917 Geography of and travel in ]
	**919 Other areas
			**918 Geography of and travel in ]
	*'''920 ], ], ]'''
			**919 Geography of and travel in Australasia, Pacific Ocean islands, Atlantic Ocean islands, Arctic islands, Antarctica, and on extraterrestrial worlds
	**''921 Not assigned or no longer used ''
			*'''920 ] and ]'''
	**''922 Not assigned or no longer used ''
			**920 Biography, genealogy, insignia
	**''923 Not assigned or no longer used ''
			**921–928 This range is reserved as an optional location for biographies, which are shelved alphabetically by subject's last name.
	**''924 Not assigned or no longer used ''
			**929 Genealogy, ]s, insignia
	**''925 Not assigned or no longer used ''
			*'''930 ]'''
	**''926 Not assigned or no longer used ''
			**930 History of ancient world to {{Circa|499}}
	**''927 Not assigned or no longer used ''
			**931 ] to ]
	**''928 Not assigned or no longer used ''
			**932 ] to ]
	***The 921-928 range is reserved as an optional location for biographies
			**933 ] to ]
	**929 Genealogy, ]s, insignia
	*'''930 ]'''		**934 ] to 647
			**935 ] and ] to ]
	**931 History of ancient world; ]
			**936 ] to {{Circa|499}}
	**932 History of ancient world; ]
			**937 ] to ]
	**933 History of ancient world; ]
			**938 ] to 323
	**934 History of ancient world; ]
	**935 History of ancient world; ] & Iranian Plateau		**939 Other parts of ancient world
			*''' 940 ]'''
	**936 History of ancient world; ]
			**940 History of Europe
	**937 History of ancient world; ]
	**938 History of ancient world; ]		**941 ]
	**939 History of ancient world; Other parts of ancient world		**942 ] and ]
			**943 ] and neighboring ]
	*940 General ]
	**941 General history of Europe; ]		**944 ] and ]
	**942 General history of Europe; ] & ]		**945 ], San Marino, Vatican City, Malta
	**943 General history of Europe; ] ]		**946 ], Andorra, Gibraltar, ]
	**944 General history of Europe; ] & ]		**947 ] and ]
			**948 ]
	**945 General history of Europe; ] & adjacent islands
			**949 Other parts of Europe
	**946 General history of Europe; ] & adjacent islands
			*'''950 ]'''
	**947 General history of Europe; ]; ]
			**950 History of Asia
	**948 General history of Europe; ]; ]
			**951 ] and adjacent areas
	**949 General history of Europe; Other parts of Europe
			**952 ]
	*'''950 General ]; Far East'''
	**951 General history of Asia; ] & adjacent areas		**953 ] and adjacent areas
	**952 General history of Asia; ]		**954 ] and neighboring ]
			**955 ]
	**953 General history of Asia; ] & adjacent areas
	**954 General history of Asia; ]; ]		**956 ] (Near East)
	**955 General history of Asia; ]		**957 ] (Asiatic Russia)
	**956 General history of Asia; ] (Near East)		**958 ]
	**957 General history of Asia; ] (Asiatic Russia)		**959 ]
	**958 General history of Asia; ]		*''' 960 ]'''
			**960 History of Africa
	**959 General history of Asia; ]
			**961 ] and ]
	*960 General ]
	**961 General history of Africa; ] & ]		**962 ], ], South Sudan
	**962 General history of Africa; ] & ]		**963 ] and Eritrea
			**964 ], Ceuta, Melilla Western Sahara, ]
	**963 General history of Africa; ]
			**965 ]
	**964 General history of Africa; ] & ]
	**965 General history of Africa; ]		**966 ] and offshore islands
	**966 General history of Africa; ] & offshore islands		**967 ] and offshore islands
	**967 General history of Africa; ] & offshore islands		**968 ] & southern Africa
			**969 South ] islands
	**968 General history of Africa; ]
			*''' 970 ]'''
	**969 General history of Africa; South Indian Ocean islands
	*970 General ]		**970 History of North America
	**971 General history of North America; ]		**971 ]
	**972 General history of North America; ]; ]		**972 ], ], West Indies, Bermuda
	**973 General history of North America; ]		**973 ]
	**974 General history of North America; ]		**974 ] (New England and Middle Atlantic states)
	**975 General history of North America; Southeastern United States		**975 Southeastern United States (South Atlantic states)
	**976 General history of North America; South central United States		**976 South central United States
	**977 General history of North America; North central United States		**977 North central United States
	**978 General history of North America; Western United States		**978 Western United States
	**979 General history of North America; Great Basin & Pacific Slope		**979 Great Basin and Pacific Slope region of United States
	*980 General ]		*''' 980 ]'''
	**981 General history of South America; ]		**980 History of South America
			**981 ]
	**982 General history of South America; ]		**982 ]
	**983 General history of South America; ]		**983 ]
	**984 General history of South America; ]		**984 ]
	**985 General history of South America; ]		**985 ]
	**986 General history of South America; ] & ]		**986 ] and ]
	**987 General history of South America; ]		**987 ]
	**988 General history of South America; ]		**988 ]
	**989 General history of South America; ] & ]		**989 ] and ]
	*990 General history of other areas		*''' 990 History of other areas'''
			**990 History of Australasia, Pacific Ocean islands, Atlantic Ocean islands, Arctic islands, Antarctica, extraterrestrial worlds
	**''991 Not assigned or no longer used ''
	**''992 Not assigned or no longer used ''		**991–992 ''Not assigned or no longer used''
	**993 General history of other areas; ]		**993 ]
	**994 General history of other areas; ]		**994 ]
	**995 General history of other areas; ]; ]		**995 ] and neighboring countries of ]
	**996 General history of other areas; Other parts of Pacific ]		**996 ] and other Pacific Ocean islands
	**997 General history of other areas; Atlantic Ocean islands		**997 Atlantic Ocean islands
	**998 General history of other areas; Arctic islands & ]		**998 Arctic islands and ]
	**999 Extraterrestrial worlds		**999 Extraterrestrial worlds
	==See also==		==See also==
			*]
	*] - Project organizing Misplaced Pages articles by Dewey number
			*]
			*]
			*]
			== References ==
	]
			{{reflist}}
			== External links ==
			* , OCLC
			*
			{{Gutenberg|no=12513 |name=A Classification and Subject Index for Cataloguing and Arranging the Books and Pamphlets of a Library |edition=1st edition (1876)}}
			<!-- older edition -->
			]

---

Latest revision as of 15:02, 24 October 2024

Codes of a library classification system

The Dewey Decimal Classification (DDC) is structured around ten main classes covering the entire world of knowledge; each main class is further structured into ten hierarchical divisions, each having ten divisions of increasing specificity. As a system of library classification the DDC is "arranged by discipline, not subject", so a topic like clothing is classed based on its disciplinary treatment (psychological influence of clothing at 155.95, customs associated with clothing at 391, and fashion design of clothing at 746.92) within the conceptual framework. The list below presents the ten main classes, hundred divisions, and thousand sections.

Class 000 – Computer science, information, and general works

• 000 Computer science, knowledge, and systems
  • 000 Computer science, information and general works
  • 001 Knowledge
  • 002 The book (writing, libraries, and book-related topics)
  • 003 Systems
  • 004 Data processing and computer science
  • 005 Computer programming, programs, and data
  • 006 Special computer methods (e.g. AI, multimedia, VR)
  • 007–009
• 010 Bibliographies
  • 010 Bibliography
  • 011 Bibliographies
  • 012 Bibliographies of individuals
  • 013
  • 014 Bibliographies of anonymous and pseudonymous works
  • 015 Bibliographies of works from specific places
  • 016 Bibliographies of works on specific subjects
  • 017 General subject catalogs
  • 018 Catalogs arranged by author, date, etc.
  • 019 Dictionary catalogs
• 020 Library and information sciences
  • 020 Library and information sciences
  • 021 Library relationships (with archives, information centers, etc.)
  • 022 Administration of physical plant
  • 023 Personnel management
  • 024
  • 025 Library operations
  • 026 Libraries for specific subjects
  • 027 General libraries
  • 028 Reading and use of other information media
  • 029
• 030 Encyclopedias and books of facts
  • 030 General encyclopedic works
  • 031 Encyclopedias in American English
  • 032 Encyclopedias in English
  • 033 Encyclopedias in other Germanic languages
  • 034 Encyclopedias in French, Occitan, and Catalan
  • 035 Encyclopedias in Italian, Romanian, and related languages
  • 036 Encyclopedias in Spanish and Portuguese
  • 037 Encyclopedias in Slavic languages
  • 038 Encyclopedias in Scandinavian languages
  • 039 Encyclopedias in other languages
• 040 Unassigned (formerly Biographies)
• 050 Magazines, journals and serials
  • 050 General serial publications
  • 051 Serials in American English
  • 052 Serials in English
  • 053 Serials in other Germanic languages
  • 054 Serials in French, Occitan, and Catalan
  • 055 Serials in Italian, Romanian, and related languages
  • 056 Serials in Spanish and Portuguese
  • 057 Serials in Slavic languages
  • 058 Serials in Scandinavian languages
  • 059 Serials in other languages
• 060 Associations, organizations and museums
  • 060 General organizations and museum science
  • 061 Organizations in North America
  • 062 Organizations in British Isles; in England
  • 063 Organizations in central Europe; in Germany
  • 064 Organizations in France and Monaco
  • 065 Organizations in Italy and adjacent islands
  • 066 Organizations in Iberian Peninsula and adjacent islands
  • 067 Organizations in eastern Europe; in Russia
  • 068 Organizations in other geographic areas
  • 069 Museum science
• 070 News media, journalism, and publishing
  • 070 News media, journalism, and publishing
  • 071 Newspapers in North America
  • 072 Newspapers in British Isles; in England
  • 073 Newspapers in central Europe; in Germany
  • 074 Newspapers in France and Monaco
  • 075 Newspapers in Italy and adjacent islands
  • 076 Newspapers in Iberian peninsula and adjacent islands
  • 077 Newspapers in eastern Europe; in Russia
  • 078 Newspapers in Scandinavia
  • 079 Newspapers in other geographic areas
• 080 Quotations
  • 080 General collections
  • 081 Collections in American English
  • 082 Collections in English
  • 083 Collections in other Germanic languages
  • 084 Collections in French, Occitan, Catalan
  • 085 Collections in Italian, Romanian, and related languages
  • 086 Collections in Spanish and Portuguese
  • 087 Collections in Slavic languages
  • 088 Collections in Scandinavian languages
  • 089 Collections in other languages
• 090 Manuscripts and rare books
  • 090 Manuscripts and rare books
  • 091 Manuscripts
  • 092 Block books
  • 093 Incunabula
  • 094 Printed books
  • 095 Books notable for bindings
  • 096 Books notable for illustrations
  • 097 Books notable for ownership or origin
  • 098 Prohibited works, forgeries, and hoaxes
  • 099 Books notable for format

Class 100 – Philosophy and psychology

• 100 Philosophy
  • 100 Philosophy and psychology
  • 101 Theory of philosophy
  • 102 Miscellany
  • 103 Dictionaries and encyclopedias
  • 104 No longer used — formerly Essays
  • 105 Serial publications
  • 106 Organizations and management
  • 107 Education, research, related topics of philosophy
  • 108 Groups of people
  • 109 History and collected biography
• 110 Metaphysics
  • 110 Metaphysics
  • 111 Ontology
  • 112 No longer used — formerly Methodology
  • 113 Cosmology (Philosophy of nature)
  • 114 Space
  • 115 Time
  • 116 Change
  • 117 Structure
  • 118 Force and energy
  • 119 Number and quantity
• 120 Epistemology
  • 120 Epistemology, causation, and humankind
  • 121 Epistemology (Theory of knowledge)
  • 122 Causation
  • 123 Determinism and indeterminism
  • 124 Teleology
  • 125 No longer used — formerly Infinity
  • 126 The self
  • 127 The unconscious and the subconscious
  • 128 Humankind
  • 129 Origin and destiny of individual souls
• 130 Parapsychology and occultism
  • 130 Parapsychology and occultism
  • 131 Parapsychological and occult methods for achieving well-being, happiness, success
  • 132 No longer used — formerly "Mental derangements"
  • 133 Specific topics in parapsychology and occultism
  • 134 No longer used — formerly "Mesmerism and Clairvoyance"
  • 135 Dreams and mysteries
  • 136 No longer used — formerly "Mental characteristics"
  • 137 Divinatory graphology
  • 138 Physiognomy
  • 139 Phrenology
• 140 Philosophical schools of thought
  • 140 Specific philosophical schools and viewpoints
  • 141 Idealism and related systems and doctrines
  • 142 Critical philosophy
  • 143 Bergsonism and intuitionism
  • 144 Humanism and related systems and doctrines
  • 145 Sensationalism
  • 146 Naturalism and related systems and doctrines
  • 147 Pantheism and related systems and doctrines
  • 148 Dogmatism, eclecticism, liberalism, syncretism, and traditionalism
  • 149 Other philosophical systems and doctrines
• 150 Psychology
  • 150 Psychology
  • 151 No longer used — formerly "Intellect"
  • 152 Sensory perception, movement, emotions, and physiological drives
  • 153 Conscious mental processes and intelligence
  • 154 Subconscious and altered states and processes
  • 155 Differential and developmental psychology
  • 156 Comparative psychology
  • 157 No longer used — formerly "Emotions"
  • 158 Applied psychology
  • 159 No longer used — formerly "Will"
• 160 Philosophical logic
  • 160 Philosophical logic
  • 161 Induction
  • 162 Deduction
  • 163–164 Not assigned or no longer used
  • 165 Fallacies and sources of error
  • 166 Syllogisms
  • 167 Hypotheses
  • 168 Argument and persuasion
  • 169 Analogy
• 170 Ethics
  • 170 Ethics (Moral philosophy)
  • 171 Ethical systems
  • 172 Political ethics
  • 173 Ethics of family relationships
  • 174 Occupational ethics
  • 175 Ethics of recreation, leisure, public performances, communication
  • 176 Ethics of sex and reproduction
  • 177 Ethics of social relations
  • 178 Ethics of consumption
  • 179 Other ethical norms
• 180 Ancient, medieval, and Eastern philosophy
  • 180 Ancient, medieval, eastern philosophy
  • 181 Eastern philosophy
  • 182 Pre-Socratic Greek philosophies
  • 183 Sophistic, Socratic, related Greek philosophies
  • 184 Platonic philosophy
  • 185 Aristotelian philosophy
  • 186 Skeptic and Neoplatonic philosophies
  • 187 Epicurean philosophy
  • 188 Stoic philosophy
  • 189 Medieval Western philosophy
• 190 Modern Western philosophy (19th-century, 20th-century)
  • 190 Modern Western and other noneastern philosophy
  • 191 Philosophy of the United States and Canada
  • 192 Philosophy of the British Isles
  • 193 Philosophy of Germany and Austria
  • 194 Philosophy of France
  • 195 Philosophy of Italy
  • 196 Philosophy of Spain and Portugal
  • 197 Philosophy of Russia
  • 198 Philosophy of Scandinavia and Finland
  • 199 Philosophy in other geographic areas

Class 200 – Religion

• 200 Religion
  • 200 Religion
  • 201 Religious mythology, general classes of religion, interreligious relations and attitudes, social theology
  • 202 Doctrines
  • 203 Public worship and other practices
  • 204 Religious experience, life, practice
  • 205 Religious ethics
  • 206 Leaders and organization
  • 207 Missions and religious education
  • 208 Sources
  • 209 Sects and reform movements
• 210 Philosophy and theory of religion
  • 210 Philosophy and theory of religion
  • 211 Concepts of God
  • 212 Existence, ways of knowing God, attributes of God
  • 213 Creation
  • 214 Theodicy
  • 215 Science and religion
  • 216 No longer used—formerly Evil
  • 217 No longer used—formerly Prayer
  • 218 Humankind
  • 219 No longer used—formerly Analogies
• 220 The Bible
  • 220 Bible
  • 221 Old Testament (Tanakh)
  • 222 Historical books of Old Testament
  • 223 Poetic books of Old Testament
  • 224 Prophetic books of Old Testament
  • 225 New Testament
  • 226 Gospels and Acts
  • 227 Epistles
  • 228 Revelation (Apocalypse)
  • 229 Apocrypha, pseudepigrapha, and inter-testamental works
• 230 Christianity
  • 230 Christianity
  • 231 God
  • 232 Jesus Christ and his family
  • 233 Humankind
  • 234 Salvation and grace
  • 235 Spiritual beings
  • 236 Eschatology
  • 237 No longer used—formerly Future state
  • 238 Creeds, confessions of faith, covenants, and catechisms
  • 239 Apologetics and polemics
• 240 Christian practice and observance
  • 240 Christian moral and devotional theology
  • 241 Christian ethics
  • 242 Devotional literature
  • 243 Evangelistic writings for individuals and families
  • 244 No longer used—formerly Religious fiction
  • 245 No longer used—formerly Hymnology
  • 246 Use of art in Christianity
  • 247 Church furnishings and related articles
  • 248 Christian experience, practice, life
  • 249 Christian observances in family life
• 250 Christian orders and local church
  • 250 Local Christian church and Christian religious orders
  • 251 Preaching (Homiletics)
  • 252 Texts of sermons
  • 253 Pastoral office and work (Pastoral theology)
  • 254 Parish administration
  • 255 Religious congregations and orders
  • 256 No longer used — formerly Religious societies
  • 257 No longer used — formerly Parochial schools, libraries, etc.
  • 258 No longer used — formerly Parochial medicine
  • 259 Pastoral care of families, of specific groups of people
• 260 Social and ecclesiastical theology
  • 260 Christian social and ecclesiastical theology
  • 261 Social theology and interreligious relations and attitudes
  • 262 Ecclesiology
  • 263 Days, times, places of religious observance
  • 264 Public worship
  • 265 Sacraments, other rites and acts
  • 266 Missions
  • 267 Associations for religious work
  • 268 Religious education
  • 269 Spiritual renewal
• 270 History of Christianity
  • 270 History, geographic treatment, biography of Christianity
  • 271 Religious congregations and orders in church history
  • 272 Persecutions in church history
  • 273 Doctrinal controversies and heresies in general church history
  • 274 Christianity in Europe
  • 275 Christianity in Asia
  • 276 Christianity in Africa
  • 277 Christianity in North America
  • 278 Christianity in South America
  • 279 History of Christianity in other areas
• 280 Christian denominations
  • 280 Denominations and sects of Christian church
  • 281 Early church and Eastern churches
  • 282 Roman Catholic Church
  • 283 Anglican churches
  • 284 Protestant denominations of Continental origin (Lutheran, Continental Reformed)
  • 285 Presbyterian churches, Reformed churches centered in America, Congregational churches
  • 286 Baptist, Restoration Movement, Adventist churches
  • 287 Methodist churches; churches related to Methodism
  • 288 No longer used — formerly Unitarian
  • 289 Other denominations and sects
• 290 Other religions
  • 290 Other religions
  • 291 No longer used — formerly Comparative religion
  • 292 Classical religion (Greek and Roman religion)
  • 293 Germanic religion
  • 294 Religions of Indic origin
  • 295 Zoroastrianism (Mazdaism, Parseeism)
  • 296 Judaism
  • 297 Islam, Bábism, and Baháʼí Faith
  • 298 No longer used — formerly Mormonism
  • 299 Religions not provided for elsewhere

Class 300 – Social sciences

• 300 Social sciences, sociology, and anthropology
  • 300 Social sciences
  • 301 Sociology and anthropology
  • 302 Social interaction
  • 303 Social processes
  • 304 Factors affecting social behavior
  • 305 Groups of people
  • 306 Culture and institutions
  • 307 Communities
  • 308 No longer used — formerly "Polygraphy"
  • 309 No longer used — formerly "History of sociology"
• 310 Statistics
  • 310 Collections of general statistics
  • 311 No longer used — formerly "Theory and methods"
  • 312 No longer used — formerly "Population"
  • 313 No longer used — formerly "Special topics"
  • 314 General statistics of Europe
  • 315 General statistics of Asia
  • 316 General statistics of Africa
  • 317 General statistics of North America
  • 318 General statistics of South America
  • 319 General statistics of Australasia, Pacific Ocean islands, Atlantic Ocean islands, Arctic islands, Antarctica
• 320 Political science
  • 320 Political science (Politics and government)
  • 321 Systems of governments and states
  • 322 Relation of state to organized groups and their members
  • 323 Civil and political rights
  • 324 The political process
  • 325 International migration and colonization
  • 326 Slavery and emancipation
  • 327 International relations
  • 328 The legislative process
  • 329 No longer used— formerly "Political Parties"
• 330 Economics
  • 330 Economics
  • 331 Labor economics
  • 332 Financial economics
  • 333 Economics of land and energy
  • 334 Cooperatives
  • 335 Socialism and related systems
  • 336 Public finance
  • 337 International economics
  • 338 Production
  • 339 Macroeconomics and related topics
• 340 Law
  • 340 Law
  • 341 Law of nations
  • 342 Constitutional and administrative law
  • 343 Military, defense, public property, public finance, tax, commerce (trade), industrial law
  • 344 Labor, social service, education, cultural law
  • 345 Criminal law
  • 346 Private law
  • 347 Procedure and courts
  • 348 Laws, regulations, cases
  • 349 Law of specific jurisdictions, areas, socioeconomic regions, regional intergovernmental organizations
• 350 Public administration and military science
  • 350 Public administration and military science
  • 351 Public administration
  • 352 General considerations of public administration
  • 353 Specific fields of public administration
  • 354 Public administration of economy and environment
  • 355 Military science
  • 356 Foot forces and warfare
  • 357 Mounted forces and warfare
  • 358 Air and other specialized forces and warfare; engineering and related services
  • 359 Sea forces and warfare
• 360 Social problems and social services
  • 360 Social problems and services; associations
  • 361 Social problems and services
  • 362 Social problems of and services to groups of people
  • 363 Other social problems and services
  • 364 Criminology
  • 365 Penal and related institutions
  • 366 Secret associations and societies
  • 367 General clubs
  • 368 Insurance
  • 369 Associations
• 370 Education
  • 370 Education
  • 371 Schools and their activities, special education
  • 372 Primary education (elementary education)
  • 373 Secondary education
  • 374 Adult education
  • 375 Curriculum
  • 376 No longer used — formerly "Education of women"
  • 377 No longer used — formerly "Ethical education"
  • 378 Higher education (Tertiary education)
  • 379 Public policy issues in education
• 380 Commerce, communications and transportation
  • 380 Commerce, communications transportation
  • 381 Commerce (Trade)
  • 382 International commerce (Foreign trade)
  • 383 Postal communication
  • 384 Communications
  • 385 Railroad transportation
  • 386 Inland waterway and ferry transportation
  • 387 Water, air, space transportation
  • 388 Transportation
  • 389 Metrology and standardization
• 390 Customs, etiquette and folklore
  • 390 Customs, etiquette, folklore
  • 391 Costume and personal appearance
  • 392 Customs of life cycle and domestic life
  • 393 Death customs
  • 394 General customs
  • 395 Etiquette (Manners)
  • 396 No longer used — formerly "Women's position and treatment"
  • 397 No longer used — formerly "outcast studies"
  • 398 Folklore
  • 399 Customs of war and diplomacy

Class 400 – Language

• 400 Language
  • 400 Language
  • 401 Philosophy and theory, international languages
  • 402 Miscellany
  • 403 Dictionaries, encyclopedias, concordances
  • 404 Special topics of language
  • 405 Serial publications
  • 406 Organizations and management
  • 407 Education, research, related topics
  • 408 Groups of people
  • 409 Geographic treatment and biography
• 410 Linguistics
  • 410 Linguistics
  • 411 Writing systems of standard forms of languages
  • 412 Etymology of standard forms of languages
  • 413 Dictionaries of standard forms of languages
  • 414 Phonology and phonetics of standard forms of languages
  • 415 Grammar of standard forms of languages
  • 416 No longer used — formerly "Prosody"
  • 417 Dialectology and historical linguistics
  • 418 Standard usage (Prescriptive linguistics)
  • 419 Sign languages
• 420 English and Old English languages
  • 420 English and Old English (Anglo-Saxon)
  • 421 Writing system, phonology, phonetics of standard English
  • 422 Etymology of standard English
  • 423 Dictionaries of standard English
  • 424 No longer used — formerly "English thesauruses"
  • 425 Grammar of standard English
  • 426 No longer used — formerly "English prosodies"
  • 427 Historical and geographical variations, modern nongeographic variations of English
  • 428 Standard English usage (Prescriptive linguistics)
  • 429 Old English (Anglo-Saxon)
• 430 German and related languages
  • 430 German and related languages
  • 431 Writing systems, phonology, phonetics of standard German
  • 432 Etymology of standard German
  • 433 Dictionaries of standard German
  • 434 Not assigned or no longer used
  • 435 Grammar of standard German
  • 436 Not assigned or no longer used
  • 437 Historical and geographic variations, modern nongeographic variations of German
  • 438 Standard German usage (Prescriptive linguistics)
  • 439 Other Germanic languages
• 440 French and related languages
  • 440 French and related Romance languages
  • 441 Writing systems, phonology, phonetics of standard French
  • 442 Etymology of standard French
  • 443 Dictionaries of standard French
  • 444 Not assigned or no longer used
  • 445 Grammar of standard French
  • 446 Not assigned or no longer used
  • 447 Historical and geographic variations, modern nongeographic variations of French
  • 448 Standard French usage (Prescriptive linguistics)
  • 449 Occitan Catalan, Franco-Provençal
• 450 Italian, Romanian and related languages
  • 450 Italian, Dalmatian, Romanian, Rhaetian, Sardinian, Corsican
  • 451 Writing systems, phonology, phonetics of standard Italian
  • 452 Etymology of standard Italian
  • 453 Dictionaries of standard Italian
  • 454 Not assigned or no longer used
  • 455 Grammar of standard Italian
  • 456 Not assigned or no longer used
  • 457 Historical and geographic variations, modern nongeographic variations of Italian
  • 458 Standard Italian usage (Prescriptive linguistics)
  • 459 Romanian, Rhaetian, Sardinian, Corsican
• 460 Spanish, Portuguese, Galician
  • 460 Spanish, Portuguese, Galician
  • 461 Writing systems, phonology, phonetics of standard Spanish
  • 462 Etymology of standard Spanish
  • 463 Dictionaries of standard Spanish
  • 464 Not assigned or no longer used
  • 465 Grammar of standard Spanish
  • 466 Not assigned or no longer used
  • 467 Historical and geographic variations, modern nongeographic variations of Spanish
  • 468 Standard Spanish usage (Prescriptive linguistics)
  • 469 Portuguese
• 470 Latin and Italic languages
  • 470 Latin and related Italic languages
  • 471 Writing systems, phonology, phonetics of classical Latin
  • 472 Etymology of classical Latin
  • 473 Dictionaries of classical Latin
  • 474 Not assigned or no longer used
  • 475 Grammar of classical Latin
  • 476 Not assigned or no longer used
  • 477 Old, postclassical, Vulgar Latin
  • 478 Classical Latin usage (Prescriptive linguistics)
  • 479 Other Italic languages
• 480 Classical and modern Greek languages
  • 480 Classical Greek and related Hellenic languages
  • 481 Writing systems, phonology, phonetics of classical Greek
  • 482 Etymology of classical Greek
  • 483 Dictionaries of classical Greek
  • 484 Not assigned or no longer used
  • 485 Grammar of classical Greek
  • 486 Not assigned or no longer used
  • 487 Preclassical and postclassical Greek
  • 488 Classical Greek usage (Prescriptive linguistics)
  • 489 Other Hellenic languages
• 490 Other languages
  • 490 Other languages
  • 491 East Indo-European and Celtic languages
  • 492 Afro-Asiatic languages
  • 493 Non-Semitic Afro-Asiatic languages
  • 494 Altaic, Uralic, Hyperborean, Dravidian languages, miscellaneous languages of south Asia
  • 495 Languages of East and Southeast Asia
  • 496 African languages
  • 497 North American native languages
  • 498 South American native languages
  • 499 Non-Austronesian languages of Oceania, Austronesian languages, miscellaneous languages

Class 500 – Science

• 500 Science
  • 500 Natural sciences and mathematics
  • 501 Philosophy and theory
  • 502 Miscellany
  • 503 Dictionaries, encyclopedias, concordances
  • 504 Not assigned or no longer used
  • 505 Serial publications
  • 506 Organizations and management
  • 507 Education, research, related topics
  • 508 Natural history
  • 509 History, geographic treatment, biography
• 510 Mathematics
  • 510 Mathematics
  • 511 General principles of mathematics
  • 512 Algebra
  • 513 Arithmetic
  • 514 Topology
  • 515 Analysis
  • 516 Geometry
  • 517 Not assigned or no longer used
  • 518 Numerical analysis
  • 519 Probabilities and applied mathematics
• 520 Astronomy
  • 520 Astronomy and allied sciences
  • 521 Celestial mechanics
  • 522 Techniques, procedures, apparatus, equipment, materials
  • 523 Specific celestial bodies and phenomena
  • 524 Not assigned or no longer used
  • 525 Earth (Astronomical geography)
  • 526 Mathematical geography
  • 527 Celestial navigation
  • 528 Ephemerides
  • 529 Chronology
• 530 Physics
  • 530 Physics
  • 531 Classical mechanics
  • 532 Fluid mechanics
  • 533 Pneumatics (Gas mechanics)
  • 534 Sound and related vibrations
  • 535 Light and related radiation
  • 536 Heat
  • 537 Electricity and electronics
  • 538 Magnetism
  • 539 Modern physics
• 540 Chemistry
  • 540 Chemistry and allied sciences
  • 541 Physical chemistry
  • 542 Techniques, procedures, apparatus, equipment, materials
  • 543 Analytical chemistry
  • 544 No longer used — formerly "Qualitative analysis"
  • 545 No longer used — formerly "Quantitative analysis"
  • 546 Inorganic chemistry
  • 547 Organic chemistry
  • 548 Crystallography
  • 549 Mineralogy
• 550 Earth sciences and geology
  • 550 Earth sciences
  • 551 Geology, hydrology, meteorology
  • 552 Petrology
  • 553 Economic geology
  • 554 Earth sciences of Europe
  • 555 Earth sciences of Asia
  • 556 Earth sciences of Africa
  • 557 Earth sciences of North America
  • 558 Earth sciences of South America
  • 559 Earth sciences of Australasia, Pacific Ocean islands, Atlantic Ocean islands, Arctic islands, Antarctica, extraterrestrial worlds
• 560 Fossils and prehistoric life
  • 560 Paleontology
  • 561 Paleobotany, fossil microorganisms
  • 562 Fossil invertebrates
  • 563 Miscellaneous fossil marine and seashore invertebrates
  • 564 Fossil Mollusca and Molluscoidea
  • 565 Fossil Arthropoda
  • 566 Fossil Chordata
  • 567 Fossil cold-blooded vertebrates
  • 568 Fossil Aves (birds)
  • 569 Fossil Mammalia
• 570 Biology
  • 570 Biology
  • 571 Physiology and related subjects
  • 572 Biochemistry
  • 573 Specific physiological systems in animals, regional histology and physiology in animals
  • 574 Not assigned or no longer used
  • 575 Specific parts of and physiological systems in plants
  • 576 Genetics and evolution
  • 577 Ecology
  • 578 Natural history of organisms and related subjects
  • 579 Natural history of microorganisms, fungi, algae
• 580 Plants
  • 580 Plants
  • 581 Specific topics in natural history of plants
  • 582 Plants noted for specific vegetative characteristics and flowers
  • 583 Magnoliopsida (Dicotyledones)
  • 584 Liliopsida (Monocotyledones)
  • 585 Pinophyta (Gymnosperms)
  • 586 Cryptogamia (Seedless plants)
  • 587 Pteridophyta
  • 588 Bryophyta
  • 589 No longer used—formerly Forestry
• 590 Animals (Zoology)
  • 590 Animals
  • 591 Specific topics in natural history of animals
  • 592 Invertebrates
  • 593 Miscellaneous marine and seashore invertebrates
  • 594 Mollusca and Molluscoidea
  • 595 Arthropoda
  • 596 Chordata
  • 597 Cold-blooded vertebrates
  • 598 Aves (Birds)
  • 599 Mammalia (Mammals)

Class 600 – Technology

• 600 Technology
  • 600 Technology (Applied sciences)
  • 601 Philosophy and theory
  • 602 Miscellany
  • 603 Dictionaries, encyclopedias, concordances
  • 604 Technical drawing, hazardous materials technology; groups of people
  • 605 Serial publications
  • 606 Organizations
  • 607 Education, research, related topics
  • 608 Patents
  • 609 History, geographic treatment, biography
• 610 Medicine and health
  • 610 Medicine and health
  • 611 Human anatomy, cytology, histology
  • 612 Human physiology
  • 613 Personal health and safety
  • 614 Forensic medicine; incidence of injuries, wounds, disease; public preventive medicine
  • 615 Pharmacology and therapeutics
  • 616 Diseases
  • 617 Surgery, regional medicine, dentistry, ophthalmology, otology, audiology
  • 618 Gynecology, obstetrics, pediatrics, geriatrics
  • 619 No longer used—formerly Experimental medicine
• 620 Engineering
  • 620 Engineering and applied operations
  • 621 Applied physics
  • 622 Mining and related operations
  • 623 Military and nautical engineering
  • 624 Civil engineering
  • 625 Engineering of railroads, roads
  • 626 Not assigned or no longer used
  • 627 Hydraulic engineering
  • 628 Sanitary engineering
  • 629 Other branches of engineering
• 630 Agriculture
  • 630 Agriculture and related technologies
  • 631 Specific techniques; apparatus, equipment, materials
  • 632 Plant injuries, diseases, pests
  • 633 Field and plantation crops
  • 634 Orchards, fruits, forestry
  • 635 Garden crops (Horticulture)
  • 636 Animal husbandry
  • 637 Processing dairy and related products
  • 638 Insect culture
  • 639 Hunting, fishing, conservation, related technologies
• 640 Home and family management
  • 640 Home and family management
  • 641 Food and drink
  • 642 Meals and table service
  • 643 Housing and household equipment
  • 644 Household utilities
  • 645 Household furnishings
  • 646 Sewing, clothing, management of personal and family life
  • 647 Management of public households (Institutional housekeeping)
  • 648 Housekeeping
  • 649 Child rearing; home care of people with disabilities and illnesses
• 650 Management and public relations
  • 650 Management and auxiliary services
  • 651 Office services
  • 652 Processes of written communication
  • 653 Shorthand
  • 654–656 Not assigned or no longer used
  • 657 Accounting
  • 658 General management
  • 659 Advertising and public relations
• 660 Chemical engineering
  • 660 Chemical engineering and related technologies
  • 661 Technology of industrial chemicals
  • 662 Technology of explosives, fuels, related products
  • 663 Beverage technology
  • 664 Food technology
  • 665 Technology of industrial oils, fats, waxes, gases
  • 666 Ceramic and allied technologies
  • 667 Cleaning, color, coating, related technologies
  • 668 Technology of other organic products
  • 669 Metallurgy
• 670 Manufacturing
  • 670 Manufacturing
  • 671 Metalworking processes and primary metal products
  • 672 Iron, steel, other iron alloys
  • 673 Nonferrous metals
  • 674 Lumber processing, wood products, cork
  • 675 Leather and fur processing
  • 676 Pulp and paper technology
  • 677 Textiles
  • 678 Elastomers and elastomer products
  • 679 Other products of specific kinds of materials
• 680 Manufacture for specific uses
  • 680 Manufacture of products for specific uses
  • 681 Precision instruments and other devices
  • 682 Small forge work (Blacksmithing)
  • 683 Hardware and household appliances
  • 684 Furnishings and home workshops
  • 685 Leather and fur goods, and related products
  • 686 Printing and related activities
  • 687 Clothing and accessories
  • 688 Other final products, and packaging technology
  • 689 Not assigned or no longer used
• 690 Construction of buildings
  • 690 Construction of buildings
  • 691 Building materials
  • 692 Auxiliary construction practices
  • 693 Construction in specific types of materials and for specific purposes
  • 694 Wood construction
  • 695 Roof covering
  • 696 Utilities
  • 697 Heating, ventilating, air-conditioning engineering
  • 698 Detail finishing
  • 699 Not assigned or no longer used

Class 700 – Arts and recreation

• 700 Arts
  • 700 The Arts
  • 701 Philosophy and theory of fine and decorative arts
  • 702 Miscellany of fine and decorative arts
  • 703 Dictionaries, encyclopedias, concordances of fine and decorative arts
  • 704 Special topics in fine and decorative arts
  • 705 Serial publications of fine and decorative arts
  • 706 Organizations and management of fine and decorative arts
  • 707 Education, research, related topics of fine and decorative arts
  • 708 Galleries, museums, private collections of fine and decorative arts
  • 709 History, geographic treatment, biography
• 710 Area planning and landscape architecture
  • 710 Area planning and landscape architecture
  • 711 Area planning (Civic art)
  • 712 Landscape architecture (Landscape design)
  • 713 Landscape architecture of trafficways
  • 714 Water features in landscape architecture
  • 715 Woody plants in landscape architecture
  • 716 Herbaceous plants in landscape architecture
  • 717 Structures in landscape architecture
  • 718 Landscape design of cemeteries
  • 719 Natural landscapes
• 720 Architecture
  • 720 Architecture
  • 721 Architectural materials and structural elements
  • 722 Architecture from earliest times to c. 300
  • 723 Architecture from c. 300 to 1399
  • 724 Architecture from 1400
  • 725 Public structures
  • 726 Buildings for religious and related purposes
  • 727 Buildings for educational and research purposes
  • 728 Residential and related buildings
  • 729 Design and decoration of structures and accessories
• 730 Sculpture, ceramics and metalwork
  • 730 Sculpture and related arts
  • 731 Processes, forms, subjects of sculpture
  • 732 Sculpture from earliest times to c. 500, sculpture of non-literate peoples
  • 733 Greek, Etruscan, Roman sculpture
  • 734 Sculpture from ca 500 to 1399
  • 735 Sculpture from 1400
  • 736 Carving and carvings
  • 737 Numismatics and sigillography
  • 738 Ceramic arts
  • 739 Art metalwork
• 740 Graphic arts and decorative arts
  • 740 Graphic arts
  • 741 Drawing and drawings
  • 742 Perspective in drawing
  • 743 Drawing and drawings by subject
  • 744 Communication design and visual design (proposed)
  • 745 Decorative arts
  • 746 Textile arts
  • 747 Interior decoration
  • 748 Glass
  • 749 Furniture and accessories
• 750 Painting
  • 750 Painting and paintings
  • 751 Techniques, procedures, apparatus, equipment, materials, forms
  • 752 Color
  • 753 Symbolism, allegory, mythology, legend
  • 754 Genre paintings
  • 755 Religion
  • 756 Not assigned or no longer used
  • 757 Human figures
  • 758 Nature, architectural subjects and cityscapes, other specific subjects
  • 759 History, geographic treatment, biography
• 760 Printmaking and prints
  • 760 Printmaking and prints
  • 761 Relief processes (Block printing)
  • 762 Not assigned or no longer used
  • 763 Lithographic processes (Planographic processes)
  • 764 Chromolithography and serigraphy
  • 765 Metal engraving
  • 766 Mezzotinting, aquatinting, and related processes
  • 767 Etching and drypoint
  • 768 Not assigned or no longer used
  • 769 Prints
• 770 Photography, computer art, film, video
  • 770 Photography, computer art, cinematography, videography
  • 771 Techniques, procedures, apparatus, equipment, materials
  • 772 Metallic salt processes
  • 773 Pigment processes of printing
  • 774 No longer used—formerly Holography
  • 775 No longer used—formerly Digital photography
  • 776 Computer art (Digital art)
  • 777 Cinematography and Videography
  • 778 Specific fields and special kinds of photography
  • 779 Photographic images
• 780 Music
  • 780 Music
  • 781 General principles and musical forms
  • 782 Vocal music
  • 783 Music for single voices
  • 784 Instruments and Instrumental ensembles and their music
  • 785 Ensembles with only one instrument per part
  • 786 Keyboard, mechanical, electrophonic, percussion instruments
  • 787 Stringed instruments (Chordophones)
  • 788 Wind instruments (Aerophones)
  • 789 Not assigned or no longer used
• 790 Sports, games and entertainment
  • 790 Recreational and performing arts
  • 791 Public performances
  • 792 Stage presentations
  • 793 Indoor games and amusements
  • 794 Indoor games of skill
  • 795 Games of chance
  • 796 Athletic and outdoor sports and games
  • 797 Aquatic and air sports
  • 798 Equestrian sports and animal racing
  • 799 Fishing, hunting, shooting

Class 800 – Literature

• 800 Literature, rhetoric and criticism
  • 800 Literature (Belles-lettres) and rhetoric
  • 801 Philosophy and theory
  • 802 Miscellany
  • 803 Dictionaries, encyclopedias, concordances
  • 804 Not assigned or no longer used
  • 805 Serial publications
  • 806 Organizations and management
  • 807 Education, research, related topics
  • 808 Rhetoric and collections of literary texts from more than two literatures
  • 809 History, description, critical appraisal of more than two literatures
• 810 American literature in English
  • 810 American literature in English
  • 811 American poetry in English
  • 812 American drama in English
  • 813 American fiction in English
  • 814 American essays in English
  • 815 American speeches in English
  • 816 American letters in English
  • 817 American humor and satire in English
  • 818 American miscellaneous writings in English
  • 819 No longer used—formerly Puzzle activities
• 820 English and Old English literatures
  • 820 English and Old English (Anglo-Saxon) literatures
  • 821 English poetry
  • 822 English drama
  • 823 English fiction
  • 824 English essays
  • 825 English speeches
  • 826 English letters
  • 827 English humor and satire
  • 828 English miscellaneous writings
  • 829 Old English (Anglo-Saxon) literature
• 830 German and related literatures
  • 830 German literature and literatures of related languages
  • 831 German poetry
  • 832 German drama
  • 833 German fiction
  • 834 German essays
  • 835 German speeches
  • 836 German letters
  • 837 German humor and satire
  • 838 German miscellaneous writings
  • 839 Other Germanic literatures
• 840 French and related literatures
  • 840 French literature and literatures of related Romance languages
  • 841 French poetry
  • 842 French drama
  • 843 French fiction
  • 844 French essays
  • 845 French speeches
  • 846 French letters
  • 847 French humor and satire
  • 848 French miscellaneous writings
  • 849 Occitan, Catalan, Franco-Provençal literatures
• 850 Italian, Romanian and related literatures
  • 850 Literatures of Italian, Dalmatian, Romanian, Rhaetian, Sardinian, Corsican languages
  • 851 Italian poetry
  • 852 Italian drama
  • 853 Italian fiction
  • 854 Italian essays
  • 855 Italian speeches
  • 856 Italian letters
  • 857 Italian humor and satire
  • 858 Italian miscellaneous writings
  • 859 Literatures of Romanian, Rhaetian, Sardinian, Corsican languages
• 860 Spanish, Portuguese, Galician literatures
  • 860 Literatures of Spanish, Portuguese, Galician languages
  • 861 Spanish poetry
  • 862 Spanish drama
  • 863 Spanish fiction
  • 864 Spanish essays
  • 865 Spanish speeches
  • 866 Spanish letters
  • 867 Spanish humor and satire
  • 868 Spanish miscellaneous writings
  • 869 Literatures of Portuguese and Galician languages
• 870 Latin and Italic literatures
  • 870 Latin literature and literatures of related Italic languages
  • 871 Latin poetry
  • 872 Latin dramatic poetry and drama
  • 873 Latin epic poetry and fiction
  • 874 Latin lyric poetry
  • 875 Latin speeches
  • 876 Latin letters
  • 877 Latin humor and satire
  • 878 Latin miscellaneous writings
  • 879 Literatures of other Italic languages
• 880 Classical and modern Greek literatures
  • 880 Classical Greek literature and literatures of related Hellenic languages
  • 881 Classical Greek poetry
  • 882 Classical Greek drama
  • 883 Classical Greek epic poetry and fiction
  • 884 Classical Greek lyric poetry
  • 885 Classical Greek speeches
  • 886 Classical Greek letters
  • 887 Classical Greek humor and satire
  • 888 Classical Greek miscellaneous writings
  • 889 Modern Greek literature
• 890 Other literatures
  • 890 Literatures of other specific languages and language families
  • 891 East Indo-European and Celtic literatures
  • 892 Afro-Asiatic literatures
  • 893 Non-Semitic Afro-Asiatic literatures
  • 894 Literatures of Altaic, Uralic, Hyperborean, Dravidian languages; literatures of miscellaneous languages of South Asia
  • 895 Literatures of East and Southeast Asia
  • 896 African literatures
  • 897 Literatures of North American native languages
  • 898 Literatures of South American native languages
  • 899 Literatures of non-Austronesian languages of Oceania, of Austronesian languages, of miscellaneous languages

Class 900 – History and geography

• 900 History
  • 900 History, geography, and auxiliary disciplines
  • 901 Philosophy and theory of history
  • 902 Miscellany of history
  • 903 Dictionaries, encyclopedias, concordances of history
  • 904 Collected accounts of events
  • 905 Serial publications of history
  • 906 Organizations and management of history
  • 907 Education, research, related topics of history
  • 908 History with respect to groups of people
  • 909 World history
• 910 Geography and travel
  • 910 Geography and travel
  • 911 Historical geography
  • 912 Graphic representations of surface of Earth and of extraterrestrial worlds
  • 913 Geography of and travel in the ancient world
  • 914 Geography of and travel in Europe
  • 915 Geography of and travel in Asia
  • 916 Geography of and travel in Africa
  • 917 Geography of and travel in North America
  • 918 Geography of and travel in South America
  • 919 Geography of and travel in Australasia, Pacific Ocean islands, Atlantic Ocean islands, Arctic islands, Antarctica, and on extraterrestrial worlds
• 920 Biography and genealogy
  • 920 Biography, genealogy, insignia
  • 921–928 This range is reserved as an optional location for biographies, which are shelved alphabetically by subject's last name.
  • 929 Genealogy, names, insignia
• 930 History of ancient world (to c. 499)
  • 930 History of ancient world to c. 499
  • 931 China to 420
  • 932 Egypt to 640
  • 933 Palestine to 70
  • 934 South Asia to 647
  • 935 Mesopotamia and Iranian Plateau to 637
  • 936 Europe north and west of Italian Peninsula to c. 499
  • 937 Italy and adjacent territories to 476
  • 938 Greece to 323
  • 939 Other parts of ancient world
• 940 History of Europe
  • 940 History of Europe
  • 941 British Isles
  • 942 England and Wales
  • 943 Germany and neighboring central European countries
  • 944 France and Monaco
  • 945 Italy, San Marino, Vatican City, Malta
  • 946 Spain, Andorra, Gibraltar, Portugal
  • 947 Russia and neighboring east European countries
  • 948 Scandinavia
  • 949 Other parts of Europe
• 950 History of Asia
  • 950 History of Asia
  • 951 China and adjacent areas
  • 952 Japan
  • 953 Arabian Peninsula and adjacent areas
  • 954 India and neighboring south Asian countries
  • 955 Iran
  • 956 Middle East (Near East)
  • 957 Siberia (Asiatic Russia)
  • 958 Central Asia
  • 959 Southeast Asia
• 960 History of Africa
  • 960 History of Africa
  • 961 Tunisia and Libya
  • 962 Egypt, Sudan, South Sudan
  • 963 Ethiopia and Eritrea
  • 964 Morocco, Ceuta, Melilla Western Sahara, Canary Islands
  • 965 Algeria
  • 966 West Africa and offshore islands
  • 967 Central Africa and offshore islands
  • 968 South Africa & southern Africa
  • 969 South Indian Ocean islands
• 970 History of North America
  • 970 History of North America
  • 971 Canada
  • 972 Mexico, Central America, West Indies, Bermuda
  • 973 United States
  • 974 Northeastern United States (New England and Middle Atlantic states)
  • 975 Southeastern United States (South Atlantic states)
  • 976 South central United States
  • 977 North central United States
  • 978 Western United States
  • 979 Great Basin and Pacific Slope region of United States
• 980 History of South America
  • 980 History of South America
  • 981 Brazil
  • 982 Argentina
  • 983 Chile
  • 984 Bolivia
  • 985 Peru
  • 986 Colombia and Ecuador
  • 987 Venezuela
  • 988 Guiana
  • 989 Paraguay and Uruguay
• 990 History of other areas
  • 990 History of Australasia, Pacific Ocean islands, Atlantic Ocean islands, Arctic islands, Antarctica, extraterrestrial worlds
  • 991–992 Not assigned or no longer used
  • 993 New Zealand
  • 994 Australia
  • 995 New Guinea and neighboring countries of Melanesia
  • 996 Polynesia and other Pacific Ocean islands
  • 997 Atlantic Ocean islands
  • 998 Arctic islands and Antarctica
  • 999 Extraterrestrial worlds

See also

• Library of Congress Classification
• Comparison of Dewey and Library of Congress subject classification
• OCLC
• WorldCat

References

1. DDC Frequently Asked Questions
2. Introduction to the Dewey Decimal Classification (23rd edition)
3. Summary lists of Dewey Decimal Classification, 23rd edition (2011)
4. "000 Computer science, information, general works" (PDF). OCLC. Retrieved 2022-01-08.
5. "EPC 143-S74.1 Graphic design and communication design". OCLC. Retrieved 2023-01-29.

External links

• Dewey Services, OCLC
• Summary lists of Dewey Decimal Classification, 23rd edition (2011)

• A Classification and Subject Index for Cataloguing and Arranging the Books and Pamphlets of a Library, 1st edition (1876) at Project Gutenberg

Category:

• Dewey Decimal Classification