Useful insights into how we actually live our lives, and helpful suggestions on how to use this knowledge to lead more fulfilling lives. This was a popularist book written by a journalist with the typical journalist obsession with answering the question, who. Every illustrative example, whether of an individual or corporation, was an engaging story about a specific person, down to details about a CEO's life we didn't need to know, or the touching comment of a wife after the subject we are studying is dead. The personal stories keep things fun as you learn about the topic, but I would have preferred a slightly more focused approach. That said, I learned some great stuff and it was a very easy read.