Os Guinness (DPhil, Oxford) is the author or editor of more than thirty-five books, including The Dust of Death, The Call, Fool's Talk, Carpe Diem Redeemed, The Magna Carta of Humanity, Last Call for Liberty, Impossible People, Unspeakable, and Time for Truth. He is the founder of the Trinity Forum, a prominent social critic, and a frequent speaker who has addressed audiences worldwide. Guinness has a lifelong passion to make sense of our extraordinary modern world and stand between the worlds of scholarship and ordinary life, helping each to understand the other-particularly when advanced modern life touches on the profound issues of faith. A passionate advocate of freedom of religion and conscience for people of all faiths and none, he was the lead drafter for both the Williamsburg Charter and the Global Charter of Conscience. He lives with his wife, Jenny, in the Washington, DC, area.