Machines at work

"This photo-illustrated book for early readers tells about the parts of a helicopter, how it works, and how people use helicopters for transportation and rescue"--Provided by publisher.

Describes the parts of a crane; different kinds of cranes, such as tower cranes, jib cranes, mobile cranes, and floating cranes; and the jobs they do at construction sites, in factories, on water, and even in space.

Photographs and text look at different types of trucks and how they are used for work and play.

Reviews the history of personal watercraft, looks at different types of personal watercraft, including machines made for standing, sitting, and for one or more people, and discusses racing, safety, and operation.

Photographs and simple text present some of the different machines used on farms, including tractors, cultivators, balers, and combine harvesters.

Illustrations and simple text describe machines that are used in road and house building, forestry, and mining industries. Climb aboard a backhoe, watch as building is knocked over, and learn how a road is made. Take an up-close look at the wide variety of machines that are used on a building site.

Photographs and text look at different types of trucks and how they are used for work and play.

Presents information on the machines that are used in road and house construction, forestry, and mining, in simple text with photographs, and includes cement mixers, excavators, bulldozers, dumptrucks, tractors, and cranes.

Illustrations and simple text describe machines that are used in farming such as tractors, combines, balers, and pickers.

Describes the jobs that cranes do and the people who operated them.