I'm admiring the covers of Penguin's new Legends from the Ancient North. They have been designed by Petra Börner who writes, "The challenge has been to capture a sense of the grandeur, ferocity and wildness of these five legendary tales, whilst retaining the truth of my artistic processes", and you can get a glimpse of that process here. Do also take a look at Petra's website, where in the archive (here and here) you'll find some familiar and beautiful book jackets.
If you have time to spare, you may like to have a go at We Love This Book's Got It Covered competition, identifying 100 books from small cover details alone. I've managed 74 so far and hope a bit of brain-racking will yield a few more.
Can you think of any books you've come across recently which have particularly apt or attractive covers? I'm soon to read one which is lovely, and I hope the design is indicative of the book's style (and content) for if so, I think it will be very 'me'.