Robert Spencer is director of Jihad Watch and a Shillman Fellow at the David Horowitz Freedom Center. He is the author of thirty books, including the bestsellers The Politically Incorrect Guide to Islam (and the Crusades); The Truth About Muhammad; The History of Jihad from Muhammad to ISIS; and The Critical Qur'an. Spencer has led seminars on Islam and jihad for the FBI, the United States Central Command, United States Army Command and General Staff College, the U.S. Army's Asymmetric Warfare Group, the Joint Terrorism Task Force (JTTF), the Justice Department's Anti-Terrorism Advisory Council and the U.S. intelligence community. He has discussed jihad, Islam, and terrorism at a workshop sponsored by the U.S. Department of State and the German Foreign Ministry. He is a senior fellow with the Center for Security Policy and is a regular columnist for PJ Media and FrontPage Magazine. His works have been translated into numerous languages.