if you are older than let's say, 22 and have some kind of conciseness this book offers nothing. Good read if you or your kid is ages between 16-20ish but other than that book doesn't offer much.
It could be a good source if you are someone who requires few years of therapy seasons to understand what's going on in your life but then, I don't think this book alone will help you either.
Best suited for young people, it's easy to read and understand, language isn't complex and book isn't that long. you can finish it in a day or two without burning your brain