Wikipedia as a Printed Book
The English edition of Wikipedia Encyclopedia contains around 3 million articles as of now and if someone were to print the entire Wikipedia encyclopedia into a book, the size of that book would roughly be equivalent to 952 volumes of the Encyclopedia Britannica.
This Wikipedia book has some 5,000 pages and it’s a compilation of 400+ featured articles all picked from Wikipedia. And, as you can easily make out from the photographs, the book is huge - it’s about 1ft 7in. high which is like placing 4 iPod Touch devices on top of each other
The more interesting part is that, Rob Matthews, who came up with this idea of printing Wikipedia, also has plans to sell this book according to Telegraph.