Sure, they tell us not to judge a book by it's cover, but that's no reason not to judge the cover.
The following link to a post on the Smashing Magazine blog shows "some creative, expressive and appealing book covers". I think quite a few of you will like it and perhaps might have some links (Amazon?) to covers of books you've bought that you've really liked:
http://www.smashingmagazine.com/2008...nd-paperbacks/
Personally, I like the Nick Strathopoulos covers for the Terry Dowling
Rynosseros books. Some of the works in the following link are Nick's (see the info for each image):
http://www.terrydowling.com/?id=covers
Cheers,
Marc