This book would make an excellent textbook for any class on logic or critical thinking. It is very well set up, very informative, and never quite becomes 'boring' as these texts tend to. My reason for a lower rating is primarily due to the context in which I read it (writing a curriculum.) I read the book out of order and never quite gave it the chance it deserved.

This book, however, is excellent at teaching clear thinking, interesting, and perfect for any layperson wishing to glimpse the world of logicians without getting too technically involved.