Thomas G. Aylesworth

Describes the many aspects of environmental pollution, the growing awareness of the problem, and the role of the federal government in formulating a policy to protect the environment.

Presents trivia about football, discussing its history, players, records, statistics, and media coverage.

Describes the theory of plate tectonics and the various forces that continue to change the surface of the earth. Discusses the history of the theory as well as evidence that seems to dispute it.

Odds and ends of baseball lore, including heroics and failures, statistics and trivia.

Briefly presents geographical, historical, and social facts about the fifty states of the Union.

Discusses the geographical, historical, and cultural aspects of Guam, Puerto Rico, U.S. Virgin Islands, American Samoa, and the North Mariana Islands. Includes maps, illustrated fact spreads, and other illustrated materials.

Discusses the geographical, historical, and cultural aspects of North Carolina and South Carolina.

Discusses the geographical, historical, and cultural aspects of Louisiana, Arkansas, Missouri, Kansas, and Oklahoma, using maps, illustrated fact spreads, and other illustrated material to highlight the land, history, and people of each individual state.

Discusses the geographical, historical, and cultural aspects of Pennsylvania, Delaware, and Maryland.

Discusses the geographical, historical, and cultural aspects of Maine, Vermont, and New Hampshire, using maps, illustrated fact spreads, and other illustrated material to highlight the land, history, and people of each individual state.

Discusses the geographical, historical, and cultural aspects of Connecticut, Massachusetts, and Rhode Island.

Examines the geography, history, culture, and people of Washington, Oregon, Alaska, and Idaho.

Discusses the geographical, historical, and cultural aspects of New Jersey and New York. Includes maps, illustrated fact spreads, and other illustrated materials.

Discusses the geographical, historical, and cultural aspects of Illinois, Iowa, Minnesota, and Wisconsin.