Here's everything you need to know about being a pre-teen: body changes, dealing with friends and bullies, getting confident, first periods, pimples, hair (wherever it is, phones and being online, what to eat, being fit & healthy, the best books and movies, how to be happy with your own true self, and lots more!

Girl Stuff 8–12 fits under your pillow and is written with the help of medical and other experts.