Wikibooks (previously called Wikimedia Free Textbook Project and Wikimedia-Textbooks) is a wiki-based Wikimedia project hosted by the Wikimedia Foundation for the creation of free content digital textbooks and annotated texts that anyone can edit. Initially, the project was created solely in English in July 2003; a later expansion to include additional languages was started in July 2004. As of April 2023, there are Wikibooks sites active for 77 languages comprising a total of 360,764 articles and 1,344 recently active editors. More information...
According to PR-model, wikibooks.org is ranked 4,043rd in multilingual Wikipedia, in particular this website is ranked 6,524th in English Wikipedia.
The website is placed before hotpress.com and after sachsen-anhalt.de in the BestRef global ranking of the most important sources of Wikipedia.