Audio book, performed by the author, who is a really funny guy. He makes a case for atheism by outlining the ten atheist suggestions (in place of the ten commandments) and a collection of anecdotes. The latter don't always correspond to the former, but most have a connection to the case for atheism. It's hard to refute Penn's argument that terrorists are a problem because of faith more than any specific religion, and I strongly agree with his statement that the majority of people are good. Overall a book both funny and thought provoking, and probably offensive to many.