Karen Armstrong is the author of numerous other books on religious affairs-including A History of God, The Battle for God, Holy War, Islam, Buddha, and The Great Transformation-and two memoirs, Through the Narrow Gate and The Spiral Staircase. Her work has been translated into forty-five languages. She has addressed members of the U.S. Congress on three occasions; lectured to policy makers at the U.S. State Department; participated in the World Economic Forum in New York, Jordan, and Davos; addressed the Council on Foreign Relations in Washington and New York; is increasingly invited to speak in Muslim countries; and is now an ambassador for the UN Alliance of Civilizations. In February 2008 she was awarded the TED Prize and is currently working with TED on a major international project to launch and propagate a Charter for Compassion, created online by the general public and crafted by leading thinkers in Judaism, Christianity, Islam, Hinduism, and Buddhism, to be signed in the fall of 2009 by a thousand religious and secular leaders. She lives in London.