Simple words in comic-style balloons tell the engaging story of a bossy girl and her robot.
Readers follow one family from Omaha, Nebraska, to Sacramento, California, and learn about the Transcontinental Railroad. Watercolor landscapes and close-up views of the train's inner workings heighten the experience.
Learn how toilets, plumbing, sewers, and treatment plants work.
Follow commuter trains, freight trains, high-speed trains, and more on their journeys.
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