The book explains how trains are used for various purposes, focusing on their role in transportation, commerce, and industry. Elting describes the different types of trains—such as passenger trains, freight trains, and specialized service trains—and the important work they do in connecting cities, transporting goods, and serving the public.Through simple text and vibrant illustrations, the book explores the mechanics of trains, including how they are powered, how railroads are constructed, and the people who operate them. It also covers the essential tasks of train conductors, engineers, and other workers, giving young readers a behind-the-scenes look at the railroad industry. Elting emphasizes the impact of trains on daily life and their role in shaping modern transportation and commerce.Trains at Work is an engaging and educational resource for children, sparking curiosity about the technology and infrastructure behind trains. It serves as an excellent introduction to the importance of railroads in society, while also fostering an early appreciation for the role of transportation in connecting people and places.