This Wikimedia Foundation site contains a collection of 'open-content' educational textbooks that can be edited by any registered user. All books found on this site are intended to be instructional in nature and should follow established rules for inclusion on this site. Users must first select a language. Featured books are listed on the main page.
Users may choose Wikijunior books for children, or 'Simple English' written in a simplified language. Users may browse books by subject. The main subject categories include Natural Sciences, Social Sciences, Computing, Humanities and Special Groups.
Book pages include a table of contents. Any reported problems with this book are displayed prior to a user accessing the material. Completed sections are present in blue text. Chapter/sections that use a red text are incomplete. Unfinished sections are not accessible except for editing. As with all Wiki sites multiple language versions are available. Users are solicited for donations and links to other Wiki sites are found near the bottom of the main page.
It is apparent this site is experiencing problematic quality issues. During this review multiple pages were viewed with incomplete information, grammatical incorrect writing and multiple languages used on the same page.