This book is a fairly easy read and certainly presents some intriguing psychological concepts such as diagnosis bias and value attribution. The authors do a good job of explaining these concepts in fairly simple terms and giving case studies and examples which affirm their power to influence us.
Like many books, this book could be much shorter. The examples and case studies could be presented in a much briefer fashion. However, given that the book is relatively short as it is, it would be a very short book if less detail was given.
I would say for anyone who has not done much reading on this type of subject matter this would be a fascinating and helpful book. It can be beneficial for dealing with people in any setting from your business to your family. However, having read other similar books such as Blink, Influencer, Outliers, and Freakononmics, my interest in the book waned early on. Most of what I was reading I had read elsewhere in some fashion.
So the bottom line is if this is your first venture in reading books that help explain human aspects of human behavior, you will enjoy this book. If you have done a lot of reading along these lines, save your money.