Describes the design of a warship, how it runs, and its many uses.

Explains what tugboats are and how they assist other ocean vessels.

Describes the physical characteristics, behavior, habitat, and life cycle of hummingbirds.

Simple text and illustrations describe the Humvee and its uses by the United States military. Hummers are not Humvees. Hummers can be seen on regular streets and are made to look like the Humvee, but they are not a military vehicle. Humvees can cross a desert and travel through rivers and mud. They go wherever the U.S. Military goes. Its full name is High-Mobility Multipurpose Wheeled Vehicle, but solders call the truck "Humvee" for short.

Simple text and photographs present basic facts about orangutans.

Introduces the parts and functions of different kinds of earthmoving machinery.