A brief introduction to the nine African-American students who integrated Central High School in Little Rock, Arkansas, in 1957.

A biography of the zoologist focusing on her work with chimpanzees at the Gombe Stream Reserve in Tanzania.

Explores the history of the United States Postal Service, discussing the processing of mail, postal employees, stamps, and letter writing.

"Examines depression and mood disorders, including the causes of depression, a history of the illness, the various types of mood disorders, and treatment methods"--Provided by publisher.

When politicians use their political power to privately benefit in an illegitimate manner, it is considered a fundamental threat to democracy. However, political corruption takes many forms, including bribery, extortion, influence peddling, and facilitating criminal enterprises. Additionally, there are certain cases that come across as ethically ambiguous: should campaign donations be considered a form of bribery? How can we prevent them from operating...