Harris, R. & Emberley, M. (1994). It's perfectly normal. Cambridge, MA: Candlewick Press
Robie Harris and Michael Emberley team up once again to talk about the normal changes teens undergo when they enter puberty and while they're growing up. This book includes sections on defining sex, the human anatomy (inside and out), puberty, masturbation, families & babies, laws concerning reproduction, planning, and staying healthy. This book is helpful with simple language, diagrams, drawings, and pictures that will help kids, and even young adults, answer questions about the many changes that occur during puberty and how these affect adulthood.
In a follow up to It's So Amazing and a precursor to It's Not The Stork, this book completes the essential family library. I must admit, I felt a little uneasy even opening this selection because of all the pictures of naked people and even simple depictions of masturbation. In retrospect, it was literature about my changing body that helped me understand how my body functioned. It is in this aspect that I see a need for developing children and teens. I can see it as a helpful tool to discussing sensitive topics and doubts about this important time in life.
Other books on similar topics include What's The Big Secret? by Laurie Krasny Brown, Ed. D., and Marc Brown.
The What's Happening To My Body Book for Girls (and Boys) by Lynda Madaras with Area
Also, there is also Planned Parenthood's Let's Talk About S-E-X for 9-12 year olds and their parents.
Requirement: It's Perfectly Normal by Robie Harris
Book cover images from Amazon.com