Describes the childhood, education, employment, and political career of the energetic man who served as the twenty-sixth president of the United States.

"Bridges have helped people cross large bodies of water for millennia. Discover the engineering behind bridges"--Provided by the publisher.

This title explores and explains how the Panama Canal was built. The canal's construction is described in terms of the engineering process. The book explores why the canal was built and describes the design stages and technologies used during construction. The book also describes the challenges builders faced while building the canal.

A biography of the seventh President describing his frontier childhood, education, career as a soldier and politician, and his new approach to the presidency.

Traces the life of the Virginia politician, American diplomat, and United States president and examines the domestic and foreign issues dominating his career.

"Dams change the landscape, providing reservoirs of freshwater and even producing electricity. Discover the engineering behind dams"--Provided by the publisher.

Examines the childhood, education, employment, and political career of the forty-first president.

An introduction to the geography, history, government, economy, people, and culture of the most populated country in the world.

Introduces the life cycle and habitat of the praying mantis as well as the related stick and leaf insects.

Surveys the childhood, education, employment, and political career of the Civil War president.