Its perfectly normal changing bodies growing up sex and sexual health is a childrens book written by robie harris and illustrated by michael emberley the purpose of the book is to inform preadolescent children of puberty by exploring different definitions of sex 1. Its perfectly normal changing bodies growing up sex and sexual health the family library harris robie h emberley michael on amazoncom free shipping on qualifying offers its perfectly normal changing bodies growing up sex and sexual health the family library. An updated fifteenth anniversary edition of the definitive book on kids sexual health brings this trusted resource into the twenty first century now offering a brand new chapter focusing on safe internet use one of parents key concerns this universally acclaimed classic by robie h harris and michael emberley is a cutting edge resource for kids parents teachers librarians . The definitive book about puberty and sexual health for todays kids and teens now fully updated for its twentieth anniversary for two decades this universally acclaimed book on sexuality has been the most trusted and accessible resource for kids parents teachers librarians and anyone else who cares about the well being of tweens and teens now in honor of its anniversary its