Book one or book 1 can refer to:
- Book One: Water, the first season of the animated television series Avatar: The Last Airbender
- Book One: Air, the first season of the animated television series The Legend of Korra
- "Book One," a colloquial term for the self-help book Dianetics: The Modern Science of Mental Health by L. Ron Hubbard
- Book 1, upcoming studio album by Grimes
This disambiguation page lists articles associated with the title Book one.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: