Overall, I have skimmed the book, and plan to read it again in more detail, but there is some great information here, as well as some of the expected psychobabble that sounds good on paper but doesn't really lead anywhere. An example of this is the section of homosexuality. It was presented with an agenda, not as a realistic look into this issue.
The book is well written though, and I enjoyed, make that grimaced, at the thought of my daughter going through the school age gossip and cliques, and other potentially destructive issues teen girls face. If you are raising a young woman, this is a good source of information, but not by any means should it be taken as an "instruction manual" as the views are often overly simplistic and also often carry a liberal agenda. Good resource for identifying problems, just not solutions.