Uses a question-and-answer format to teach young readers about different types of machines, how they work, what their parts are for, and how they are used.
A reference book dealing with the various ways man travels on land, from carts and bicycles to trucks and subways. Includes a section on roads, bridges, and tunnels.
Traces the history of developments in both land and water transportation, including animal- and human-powered, railroads, automobiles, ships and boats, and more.