In reality, I would give this book three-and-a-half stars. It started off as a blog called "You Are Not So Smart," and Mr. McRaney was convinced to turn his psychology posts into a book. This book then reads as a collection of short essays, each one dealing with a different mind process. The book is filled with interesting information, based on years of research. In fact the book made me want to seek out the original works that the author continually refers to. The snippets contained within are funny, interesting and might even have you rethink the way you think.