Feast your eyes! I really liked the UK covers for Robin Hobb's recent Rain Wild Chronicles, so I poked around and discovered that Harper Voyager carried this most exquisite design for all her books. Animals! Jackie Morris designed them all.
These have the same layout as George R. R. Martin's Song of Ice and Fire books, with the big name on top, isolated image, and title on the bottom, but less shiny and serious. The nice papery texture, pastel background, and hand-drawn critter menagerie—with the odd ship—just make me want to collect them all. I haven't read Hobb's books—got halfway through Assassin's Apprentice—so I don't really know if there are dragons all over the place in her trilogies, or the significance of the pony in The Golden Fool, but I bet it'll be fun to guess why they picked a particular icon for each book. 
