This is a book of essays that have been published elsewhere previously. Sapolsky reminds me of a top. He gets wound up and then it's just fun to watch his mind go. In this book Sapolsky takes a series of subjects and explores them mostly through relatively popular science sources. He then draws conclusions that feel relevant to how we live our lives and think about the world. The one complaint I have is that the topics don't feel obscure enough to me. Perhaps because of my background I'd at heard most of the information before, though some of the conclusions he came to were completely new. I think The cultural desert was my favorite essay in the book mostly because it did discuss something I really hadn't heard before.