Children's LiteratureThis book is part of the "Human Body" series that would be a welcome addition to classroom teaching of the very young. It effectively explains the basic elements of the heart and how it moves blood through the body. Each chapter is devoted to a specific element of the heart, such as how both exercise and a healthy diet keep it strong. The captions for each photo appropriately summarize each brief chapter, and the photos are rich in explanation. Brief and basic analogies are used throughout the text to reinforce points made about the importance of the heart's functions. An activity accompanies the book for reinforcement about the importance of the heart as part of the human body. 2004 (orig. 1978), Smart Apple Media, Ages 7 to 9.