My sister recently bought this book and quickly pawned it off on me.
That's the best thing I can really say about this book.
Unfortunately, it seems like Ms.Lawrence really took some meaning from the title of her book; she not only made peace with her inner overachiever but forgot about it completely.
The best word I could use to summarize her work is this, lazy. It's as if she doesn't do any research on any of the topics that she brings up as factual. Instead she seems to have taken from other pseudo-psychology books on the topic that manage to get some coverage and shape what they said into something that is written in stone.
Any actual professional in the fields relevant to the material would have agree that she has no basis for any of her claims she presents as fact in her book.
On a side note, more as a review on the author than the book itself, she has no ethics what-so-ever. She recently went on TV to criticize something she had no experience with at all simply because it would grab her some air-time hoping to get her name and book out to the public. Besides the fact that her book is definitely undeserving of a purchase, I would never knowingly support anything this woman does knowing that she would use such underhanded and ridiculous methods of gaining some TV-time as blindly bashing random things that happen to be in the spotlight at the time.