It depends how you define "largest" and "book". Here's some other contenders:BHUTAN — World's Largest Published Bookhttp://web.media.mit.edu/~mike/fp/bhutan/Wikipedia — World's Largest Bookhttp://en.wikipedia.org/wiki/World's_largest_bookWikipedia — Brockhengehttp://en.wikipedia.org/wiki/Image:Brockhenge.jpg Abusive comment hidden. (Show it anyway.)
BHUTAN — World's Largest Published Book
http://web.media.mit.edu/~mike/fp/bhutan/
Wikipedia — World's Largest Book
http://en.wikipedia.org/wiki/World's_largest_book
Wikipedia — Brockhenge
http://en.wikipedia.org/wiki/Image:Brockhenge.jpg