For a book to have a fighting chance nowadays it has to have a great cover. Sure. Plot, character development, and story arch are all important, but there are hundreds of new releases each week. I'm shallow enough to admit that if a book's cover doesn't grab me, I'm probably not giving it a look, unless recommended by a friend of course. This site is great and based on that basic premise. Give each cover a star rating and then see how much it match's it's Amazon rank. Hours of fun. See if you can rank all 1,784,432,886 books on Amazon. Have fun.