Photographs and text introduce readers to various machines that work on the water including ocean liners, fishing and sailing boats, tankers, aircraft carriers, and submarines, drilling rigs, and warships.
Photographs and text describes various machines that work on a farm including tractors and combines, corn harvesters and manure spreaders, and cultivators.
Photographs and text describe various machines that are used in emergencies including ambulances and firetrucks, police vehicles, air rescue vehicles, lifeboats and underwater emergency equipment, and space rescue machines.
Photographs and text describe various machines that are used at a construction site including concrete mixers, cranes, earth movers and tunneling machines, super haulers, and road-building machines.
