Os Guinness (DPhil, Oxford) is the author or editor of more than thirty books, including The Dust of Death, The Call, Fool's Talk, Last Call for Liberty, and The Great Quest. A frequent speaker and prominent social critic, he 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. He lives with his wife, Jenny, in the Washington, DC, area.