I thought this book was funny and worth a read. It's called Halcyon Daze and is by Palmer Owyoung. It's about a woman from Kansas who moves to San Francisco and all of the freaky friends she makes who are having their quarter life crisis. In addition to being hysterical I thought that it touched on a lot of topics pertinent to people in their 20's and 30's.
While it's not a profound book that's going to change your life it is an entertaining read. Best of all you can download it for free at his site