This book is the updated edition of the popular 2011 puberty book which has quickly become the go-to resource for girls with autism and/or other intellectual and developmental disabilities (I/DD). Unlike traditional puberty resources, this book is written at a third-grade reading level, is filled with tasteful illustrations and photos, includes concrete language and interactive activities to improve comprehension and empower girls to feel confident about growing up. The Girls' Guide to Growing Up covers all of the physical and emotional changes (including periods) that happen during puberty, hygiene information as well as privacy concepts that can support socially appropriate behavior, a common concern around this time. Rules for private body parts and safety concepts are also included. The Girls' Guide to Growing Up is a great book for parents, educators, and healthcare professionals. Educators can use the book to teach modified and adapted human growth and development. Parents can use the book to initiate conversations and get ideas for how to present information about growing up in understandable ways. And healthcare providers can use the book to support patient and family education.