Overall, most of the book was interesting, but the authors have a tendency to digress and go on a few tangents. Often, it takes them a while to make their actual point for a particular chapter. The chapter on prostitution to me was the most interesting. The last one on global warming, while it raises some interesting ideas, was just too long and overdone. By this point in the book, I was just waiting for the book to end. A little editing could have helped. On the positive, it is not a terribly long book, so you can probably read it in a day or two. It does include extensive notes if you wish to read those as well. If you liked the first book, you will probably like this one too.