As many of other reviewers have pointed out, this is an interesting book with a good premise, but ultimately frustrating and full of shortcomings. The basic premise of the book, that the recent generation of people is more self-centered and self-confident, is well argued in the first few chapters of the book, with plenty of empirical evidence and detailed statistical analysis. If book had focused on those claims and chapters, it would have been very convincing and interesting. Unfortunately, Twenge takes off after that in all sorts of directions, talking about all the ways that the culture and society have changed in the past couple of decades. Some of that stuff is interesting, some of it is rather trite and familiar to anyone who has not been living under a rock over that time period. The book loses focus, and never recovers to the quality of the earlier chapters. This could have been a much better book had the author focused on a much narrower set of issues. This way, it still makes for an interesting read, but not something I would necessarily go out of my way to recommend others.