Hal Rogers

Simple text describes the parts of a tractor, how they work, and what they do.

Describes the parts of a grader, how it works, and the work it does at a construction site.

Describes the origins and growth of the well-known motorcycle manufacturer, Harley-Davidson, chronicling the company's successes and failures over the past ninety years.

Describes the parts of a snowplow, how it works, and the work it does to clear the roads of ice and snow.

Describes the parts of a large earthmover, how they operate, and the work they do.

Describes the parts of a tow truck, how to operate them, and the work they do.

Briefly explains the functions and major parts of a bus.

Text and color photos describe several kinds of cars and identify a car's various parts, such as the windshield, steering wheel, and pedals.