O'Donnell, Kerri

Photographs and simple text teach young readers about the Great Wall of China, its construction, and significance.

Uses timelines and mathematical problems to show the history of exploration in North America.

An introduction to Komodo dragons, discussing the lizard's environment, diet, reproduction, physical characteristics, and conservation.

Describes the geography, people, history, government, economy, and culture of Mexico.

Describes different career opportunities in the modeling field, providing information on job training, requirements, and salary.

Describes the negative side effects inhalants have on a person's nasal passages as well as the ways it can kill, and includes a glossary and further reading list.

A simple introduction to the gold rush in California in the mid-nineteenth century that discusses early discoveries, the United States' occupation of California in the 1840s, the route gold seekers took west, the life of a miner, and discrimination in mines; and includes a glossary, a time line, and illustrations.

Introduces readers to the planets and moons of the solar system including the moons of Mars, Saturn, and Jupiter.

Describes the life and theories of Galileo, relating how his discoveries conflicted with the accepted beliefs of his time.

Explores where bats live, what they eat, how they "see," how they care for young, how they help humans, and other related topics.