Providing a highly detailed "Gangs 101" primer, this book surveys the origins, history, and evolution of gangs in the United States and abroad. It examines their structure and activities, their allure, and the different models used to describe them. It explores various theories on the phenomenon on a national and international level, and explains the judicial and legislative response to the gang problem. Offering clear and concise information and advice, it addresses the problem from all major perspectives including prevention, intervention, and suppression.