This was really, really good, but if I'd tried to read it before my graduate-level stats classes, I probably would have given up. It's written to be very accessible to the layperson, but the problem is the subject matter. Unless you work with statistics a lot, or you have recently had a statistics class, some of it will be over your head. In fact, some of the content in this book helped clarify what I just learned in class.

It's packed with interesting material, and the author has a great sense of humor, and there are plenty of illustrations to help explain his points. I'm really happy I stumbled across this book.