Found an interesting thing about wiki....
 

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.

wikipedia-book.jpg

 

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

wikipedia-print.jpg

 

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.