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Photographs and simple text describe what it is like to drive large trucks and semis.

Describes the parts of a semitrailer and a day in the life of an over-the-road truck driver.

Describes different kinds of tractor trailers, or big rigs, and the loads they haul.

Introduces the various parts of a tractor trailer and their functions as a truck driver prepares to take his "big rig" on the road.

Describes semitrucks, their main features, and how they are used.

Describes various kinds of tractor-trailer combinations, the biggest trucks on the highway.

Explains what big rigs are, looks at the different parts of the giant trucks, and shows various types of big rigs.

Describes the evolution of the big rig since its beginning in 1804, the various kinds of trucks, their key parts, driver preparation, and work rules.

Discusses eighteen-wheelers, the different types, the work they do, and the people who drive them.

Color photos and simple text introduce big rigs, describing their size, their parts, and the things they haul.

An introduction to the big rigs, their history, how they are made and tested, their special features, and their many uses.

Maggie and her grandfather enjoy a special trip by following Route 30 from Pittsburgh all of the way to the Pacific Ocean.

Describes a tractor trailer and explains how it works and is used; includes a brief history and facts about this form of transportation.

A big eighteen-wheeler truck describes the kind of work it does.

Did you know that semi trucks are the biggest trucks on the road? Most of the things people buy are delivered to stores by semi trucks.