A mathematician and a philosopher, William A. Dembski is associate research professor in the conceptual foundations of science at Baylor University and a senior fellow with Discovery Instituteﾒs Center for the Renewal of Science and Culture in Seattle. Dr. Dembski previously taught at Northwestern University, the University of Notre Dame, and the University of Dallas. He has done postdoctoral work in mathematics at MIT, in physics at the University of Chicago, and in computer science at Princeton University. A graduate of the University of Illinois at Chicago where he earned a B.A. in psychology, an M.S. in statistics, and a Ph.D. in philosophy, he also received a doctorate in mathematics from the University of Chicago in 1988 and a master of divinity degree from Princeton Theological Seminary in 1996. He has held National Science Foundation graduate and postdoctoral fellowships. Dr. Dembski has published articles in mathematics, philosophy, and theology journals and is the author/editor of seven books. In The Design Inference: Eliminating Chance Through Small Probabilities [Cambridge University Press, 1998], he examines the design argument in a post-Darwinian context and analyzes the connections linking chance, probability, and intelligent causation. The sequel to The Design Inference is due out this September with Rowman & Littlefield and critiques Darwinian and other naturalistic accounts of evolution. It is titled No Free Lunch: Why Specified Complexity Cannot Be Purchased without Intelligence.