I had high hopes for this book. There were a few interesting nuggets about brain chemistry in here that I found interesting. The rest of the book was a sorry set of self-help techniques that either: 1) didn't apply to me as an introvert, or 2) seemed to overdramatize the ramifications of being an introvert. I'm not sure what kind of an introvert would benefit from this book.... If you're an introvert who feels COMPLETELY abnormal, it might benefit you.