A picture book for learning about the structure of a boy's body. - Title: Picture Book of a Boy's Body - Author: Keiko Kitazawa - Illustrator: Matsuko Imai - Series Name: About the Body Series 2 - Publisher: Arnie Publishing I think the content is easy to understand for elementary school boys. Parents and children can enjoy learning together. Recommended for those who are unsure how to explain things. It was a reference book when I attended a seminar 5 years ago. In excellent condition with no scribbles.