This charming board book explains the human body in a series of words and pictures easy enough so that preschool boys and girls can understand them. The heavy board pages are die-cut in the shape of a smiling little boy. When kids lift the front cover, they remove his shirt and see the location of his heart. The text gives a simple explanation of how the heart pumps blood through the entire body. As kids turn successive pages, they observe the human body's interior and learn about the functions of muscles, lungs, the skeleton, and the stomach and intestines. This instructive book appeals to younger children's natural curiosity about their bodies. It is a title in B.E.S. Little People Shape Books, a series of color-illustrated board books that are easy for early-graders to read, and are understandable to preschoolers when the books are read aloud to them.