For over a year the Jamestown Foundation has published objective, fact-driven analyses of terrorist organizations and their operations, through its Terrorism Monitor publication. As the only periodical in circulation devoted to examining the war on terror and the struggle against al Qaeda, the newsletter offers a unique perspective comprising some of the world’s leading experts on international terrorism. Unmasking Terror is a compilation of articles from the first year of Terrorism Monitor. Through the lively and understandable articles in Unmasking Terror, readers can quickly gain an appreciation for the complexities of the various terrorist groups, their motives, aims, and sources of support. The book is an excellent resource for private sector experts, policymakers and intelligence officials, and anyone seeking a greater understanding of the many challenges of combating terrorism.