I didn't get much out of this book, even though I thought I'm an introvert. It's so much about how you shouldn't feel bad about being one, which is good, but goes a bit haywire on how much you should be cuddled up to. It suggested, to me at least, that you need to be protected and all the things you have to consider to survive.
Maybe I'm just not the right person to read this one, but it was just a bunch of "you are good the way you are" and "you poor little thing" repeated over and over again. Oh and soooo many lists.
It's probably helpful if you are totally overwhelmed by life and by you being an introvert, giving you very detailed tips on how survive practically every situation. If you are not part of this very small subset of introverts, you better skip this one.