The first book that I've read from the Unshelved booklist was 13 Bullets. It's a pretty graphic vampire novel with a very unusual perspective on vampires. It also has more romance than I would normally expect from a fairly horrific vampire novel. There were a couple of scenes that were so graphic that I had to put the book down and come back to it, but overall I enjoyed it, and was struck by the ending, which came as a complete surprise to me.