In its mission of creating the world's largest collection of open-content textbooks, Wikibooks contains many books on a vast array of topics. A relatively small fraction of these topics are frequently censored by educational, governmental, corporate, parental, and other filtering schemes.
- Some Wikibooks books discuss words or language that are considered profane, vulgar, or offensive by some readers. See Wikibooks:Profanity for more information.
- Books may contain audio, visual, or written representations of people or events which may be protected by some cultures.
- Wikibooks contains many different images, some of which are considered objectionable or offensive by some readers. For example, some books contain graphical depictions of violence, or depictions of human anatomy.
- Many books contain frank discussion of controversial topics. Some subjects that are discussed have criminal applications in some jurisdictions. Others contain information on dangerous or otherwise risky activities (see Wikibooks:General disclaimer and Wikibooks:Risk disclaimer).
- Wikibooks contains spoilers.
- Wikibooks may contain triggers for people with post-traumatic stress disorder.
- Wikibooks may contain images and videos which can trigger epileptic seizures and other medical conditions.
- Since Wikibooks is open to contributions from the public, there may at any time be graffiti present on Wikibooks.
- There may be medical, legal, or other information that is normally also the subject of professional opinions; Wikibooks is not a substitute for seeking the help of a professional. Please note: Wikibooks does not give legal advice or medical advice.
Wikibooks' current policy is to include such content, provided it breaches neither any of our existing policies (especially Neutral point of view) nor the laws of the state of Florida in the United States, where Wikibooks is hosted. Some of these books contain warnings, but many do not.
In any case, Wikibooks is a work in progress, and many books contain errors, bias, duplication, or simply need tender loving care. We encourage readers to help us fix these problems. The great majority of books are written primarily or solely by individuals who are not subject matter experts, and may lack academic or professional credentials in the area.
Wikibooks contains books that would not be contained in a conventional library. Wikibooks' coverage is based on the interests of its volunteer contributors. Readers should not judge the importance of topics based on their coverage in Wikibooks, nor assume that a topic is important merely because it is the subject of a Wikibooks book.