Illustrations and text introduce early readers to the the training, duties, and lifestyle of a samurai; and also describes the culture and traditions of ancient Japan.

Cartoons and text combine to describe what it was like to work on the construction of the Brooklyn Bridge.

Though most of them are too small to be seen with the naked eye, bacteria are everywhere. They appeared on Earth more than 3 billion years before the first dinosaurs. Some bacteria cause deadly diseases, but many of them are helpful to us. They fertilize the soil by breaking down dead material, and they are an essential ingredient in many foods. Bacteria in our own bodies are a vital part of the digestive process. --

Uses humor in both text and illustrations to describe what it would be like to live without clean water and describes how people access water and the importance of making sure that water is not polluted or wasted.

Discusses how weather has shaped the world we live in, and how humans have learned to live in almost every climate that can be found on Earth. --

Uses humor in both text and illustrations to describe what it would be like to live without the toilet and describes how people managed to dispose of their waste in the past.