I love Mary Roach's books. Shes very informative and fun. Her books make you feel like you're not really learning, but you are! Stiff was a great read for me since I'm grossly interested in forensic anthropology. Stiff taught me so many things about cadavers that I would have never expected to learn. Highly recommended if you're into the dead, or you're just interested in learning anything for fun!
I tried very hard to keep up with reading this book but it had no plot. I guess it's readable if you're looking for a smutty book only.