How 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 features96 pages of engaging and educational answers to many popular questionsHundreds of labeled full-color illustrationsAn index to key termsFans of this book will also enjoy other in the same series,...