Parks, Peggy J.

Examines the various constellations in the universe, and describes how they are mapped, how ancient travelers navigated by the stars, and more.

A concise introduction to influenza that explains what it is and discusses causes, symptoms, and treatments with primary source quotations, facts, and illustrations.

Provides information on the causes, side effects, and treatment of various digestive disorders. Features a list of key people and advocacy groups, facts and illustrations, primary source quotes, a chronology, a list of related organizations, and additional resources.

Provides information on the effects and risks of various diet drugs. Features a list of key people and advocacy groups, facts and illustrations, primary source quotes, a chronology, a list of related organizations, and additional resources.

Provides an introduction to sand dunes, explaining what they are and how they form, looking at some of the plants and animals that live in sand environments, and telling of some of the remarkable discoveries that have been found buried in the sand.

Photographs and illustrations describes the sun, how the sun came into existence, the layers of gas that make up the sun, solar flares and other unique phenomina, and the importance of the sun to the survival of the earth.

Impulse control disorders are mental illnesses that involve the inability to resist overpowering urges to do something harmful to oneself and/or others. Through objective overviews, primary sources, and full-color illustrations this title examines the causes.

Describes the design and construction of the distinctive Sydney Opera House in Australia, hailed as one of the seven wonders of the modern world.

Explains the causes of hurricanes, looks at the devastation caused by the 2005 hurricane Katrina and similar storms in the past, and discusses how scientists work to track killer storms.

Provides a balanced scientific overview of water pollution, how it threatens the environment and possible solutions.