William Martin (BD, PhD, Harvard) is the Harry and Hazel Chavanne Professor Emeritus of Sociology and Chavanne Senior Fellow for Religion and Public Policy at the James A. Baker III Institute for Public Policy at Rice University in Houston, Texas. He has appeared on many national radio and television programs, including 60 Minutes, Nightline, 20/20, Today, Frontline, and All Things Considered. He has been published in numerous national and regional periodicals including The Atlantic, Harper's Esquire, and Texas Monthly. While researching this book, he was given exclusive access to the Billy Graham archives.