The human body is a wonderful machine and its study is truly a fascinating subject for study. It has a number of internal systems all working together to help the body stay alive. The present book — HOW MY BODY WORKS— The Heart, presents detailed coverage of the functions of the human heart. • Ideal for ages 12-15 • 32 pages • Clear-cut image • Easy-to-read explanation • Wonderful facts • Colourful presentation Equipped with clear-cut images to illustrate the text and easy-to-follow explanations, this book uniquely professes expert knowledge regarding the aspect of the human heart that it deals with. Ideal for all science lovers, this book helps children delve deeper into the anatomy of this fist-sized muscular organ that sends oxygen and nutrients to all parts of the body.