Harris, R. 1999. It's so amazing. Boston, MA: Candlewick Press.
It's so amazing is an excellent book for middle school and older students that have the curiosity of a human's changing body and the basics of humanity.  The book is educational and accurate with an abundance good humorous information about human growth and changes that occur. It's so amazing, is designed with a friendly outlook with cartoonish dialogue. Growth, sex, puberty and human recreation can be found in this book. An excellent book that is friendly and gives specific understanding of explanations to a multitude of questions that parents may come across with their children.