"The 4-Hour Body" by Tim Ferriss. If you are into fitness or just looking for a quality read about a guy being a human guinea pig for the last 10 years of his life, it is a solid read.
I am back down to my college weight following his diet and exercise regiment since the Monday before Christmas and have taken 2" off my waist, 1/2" of both thighs and a 1/4" off my arms. I highly recommend it.