The September 11, 2001, terrorist attacks on the United States brought the issue of terrorism to the forefront of American attention and controversy. To determine how to prevent further destruction, it is necessary to understand the shadowy phenomenon that causes it. Who are the terrorists? What are their motives? What are the roots of this form of violence, and will it come to an end? What exactly is terrorism? The six-volume The Roots of Terrorism explores some of these universal questions by examining the history of terrorism throughout the world. All six volumes are enlightening resources for students who want to understand terrorism and how it has evolved geographically, historically, and ideologically.