nHow do trains work? What types of trains are there? Where do they take you? The Do You Know? TM series provides in-depth looks at a wide range of popular subjects. Appealing to children who want to know everything, each thought-provoking book features n- 96 pages of engaging and educational answers to many popular questions n- Hundreds of labeled full-color illustrations n- An index to key terms Fans of this book will also enjoy other in the same series, including Jobs, Dinosaurs, Oceans, Space, Vehicles, Earth, and Animals. n- Great family and classroom read-aloud book n- Educational books for kids 5 to 8 n- Nonfiction books for kids An indispensable resource for any childs library!