Don't know who made this absurd list. The Qu'ran is somehow absent (probably only checked American sources, but then, what does Mao's book do there? Nobody knows how many copies of the red book were published. No one.). Harry Potter is obviously not one book but seven different books. This looks a lot like, er, bovine excrement
I think Gone With the Wind would be better placed on the list of "10 Books that Sit On Shelves Unread"