A Wikipedia Book is an organized collection of Wikipedia articles that can be rendered electronically in PDF format, or ordered as a printed book. The book is compiled afresh each time it is downloaded or ordered, so will always reflect the latest versions of the articles.
Note: Currently (2017) not all information in an article will be displayed when rendered in book format - in particular, since 2014 information held in tables (including infoboxes) has not been displayed. Nor has maths markup.
For information and help on Wikipedia books in general, see Help:Books (general tips) and WikiProject Wikipedia-Books (questions and assistance).
