Colorful graphics, engaging text, and fun, close-up photographs invite young readers to become familiar with their respiratory system. In this book, readers will learn how their nose, mouth, trachea, and lungs work together to breathe in and out. Simple diagrams highlight major parts of the respiratory system. Bronchi, bronchioles, and alveoli are also described, as well as the exchange of oxygen and carbon dioxide. In addition, readers will learn about nutrition, exercise, and safety to keep their respiratory system healthy. Features include a table of contents, fun facts, diagrams, health tips, a glossary with phonetics, and an index. Buddy Books is an imprint of ABDO Publishing Group.