The image is not the only thing that fascinates me on a cover. Some books also have recommendations- and I do have to admit, that more often they not, these serve the exactly wrong purpose with me. If you have a recommendation by an obscure little newspaper that you KNOW has no literary fame what so ever.. well then... you know that nobody of importance had anything better to say.. which means.. why not just skip the recommendation?
Honestly, I once saw a book in Sweden actually printed with a recommendation from Köpingbladet, and I wanted to cry. My Swedish favourite is when the book about the illustrious Mitford sisters was printed with recommendation claiming that Shakespear could not have written a better story. I dare say he didn't.
Of course, when one of Dan Brown´s was reprinted with the claim "probably the most intelligent and accomplished author of our time" not only was I hoping that Heineken would sue, but please? Really?