Bibles are updated with information on the characters after the information has been established on screen. For example, the Frasier show bible was "scrupulously maintained", and anything established on air — "the name of Frasier's mother, Niles' favorite professor, Martin's favorite bar...even a list of Maris' [dozens of] food allergies" — was reflected in the bible. The updated bible then serves as a resource for writers to keep everything within the series consistent.
Other bibles are used as sales documents to help a television network or studio understand a series, and are sometimes given to new writers when they join the writing staff for the same reason. These types of bibles discuss the backstories of the main characters and the history of the series' fictional universe.
Writers Guild of America
- Nagel, Jan (27 December 2014). "The Pitch Bible: Just The Essentials". Animation World Network. Retrieved 2 October 2019.
- Espenson, Jane (2007-07-01). "How to Give Maris Hives, Alphabetized". JaneEspeson.com. Retrieved 2013-10-26.
- "How to Become a Member". Writers Guild of America West. Retrieved 2020-07-07.