Crewel by Gennifer Albin
Black City by Elizabeth Richards
To be completely honest, I'm not exactly sure what either of these are (well, except for the rose). They lead nothing to the actual book as far as I can tell, but they caught my eye and they kept it. Somebody obviously put a lot of thought into creating them, and I think that it really paid off. I had never heard of either of these books anywhere else, and I probably wouldn't have looked further into them if the covers weren't so intriguing.
What do you guys think? Has there ever been a book that you picked up just because it had really original and creative cover art?