Alister E. McGrath is Professor of Historical Theology at Oxford University, and Senior Research Fellow at Harris Manchester College, Oxford. He is a world-renowned theologian, and is the author of numerous bestselling titles available through Blackwell Publishing, including Christian Theology: An Introduction (4th edition, 2007), Christian Theology Reader (3rd edition, 2007), and Dawkins' God (2005).


Darren C. Marks is Assistant Professor of Theology and Religious Studies at Huron University College and in the Faculty of Graduate Studies at the University of Western Ontario. He is the author of numerous articles in systematic theology and Canadian ecclesiastical history, and is the editor of Shaping a Global Theological Mind (2007) and the forthcoming Justifying God: A Theology of Sin.