I own all of Mary Roach’s books because they’re fascinating and hilarious. The subjects she chooses aren’t exactly popular non-fiction topics. For starters, writing an entire book on the alimentary canal wouldn’t normally be considered as a best selling topic by a publisher. Then there’s her book on cadavers, the science of sex and researchers who study the afterlife.
In this Youtube video, Adam Savage discusses the subject matter of her books in frank and gory detail. (Warning – if you’re squeamish, don’t watch.)