ROBERT SPENCER is the director of Jihad Watch and a Shillman Fellow at the David Horowitz Freedom Center. He is the author of twenty-one books, including the New York Times bestsellers The Politically Incorrect Guide to Islam (and the Crusades) (Regnery Publishing) and The Truth About Muhammad (Regnery Publishing) and the bestselling The History of Jihad From Muhammad to ISIS (Bombardier Books) . 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. State Department and the German Foreign Ministry. He is a senior fellow with the Center for Security Policy.