Once again, authors Levitt and Dubner tackle seemingly complex, sometimes bizarre, and occasionally risqué issues through the lens of their economics training. How pimps add more value to a product than do realtors, and how both are adversely affected by the internet. Or how doctors, committed and entrusted to save lives, are often the unknowing facilitators of patient deaths. Or how throughout history, most of the world's problems are not solved with complicated and expensive technological advancements, but rather through cheap and easy solutions, and how this approach will probably be the most effective in dealing with global warming for example. Though each chapter was interesting in its own right, there didn't seem to be an overarching theme to the book - something the authors give fair warning about in their introduction. If you were a fan of the best-selling book Freakonomics, then you'll probably enjoy this book as well.