Stephen Currie

Examines the issue of the use of performance enhancing drugs by athletes, asking if the practice should be acceptable, to what extent they actually work, whether testing deters their use, and whether existing penalties are fair and consistent.

This volume examines the events that led to the Renaissance, and how it impacted the world.

Surveys the origins and events of the series of wars called crusades that lasted from 1095 to 1291.

Learn about ecosystems, what they are and how they work.

Discusses the lives, education, successes, and failures of such explorers as John Franklin, Robert Peary, Matthew Henson, Roald Amundsen, and Robert Falcon Scott as they ventured into the Arctic and Antarctic.