Instruct: Classify Amazon reviews into positive or negative sentiment
Query: An invaluable tool for girls blossoming into women.

I am older than the target audience. But, frankly, I read it because as a young woman raised in the 1970s and 80s, there was no such book for me to read. I still have things to learn about the female anatomy, history of feminism, and other health and cultural topics that this colorfully written and instructive book offers. I WISH I HAD THIS 10 YEARS AGO! Today, I just hope parents, teachers, educators, and other adults in charge of teen girls will consider buying this book and giving it to a young woman they know. It will help that girl make informed choices and avoid merely guessing what's going on with her body or following the latest fad among peers. A must read for all adults who care about teenage girls and for those girls!