Denys Turner is the Norris-Hulse Professor of Philosophical Theology at the University of Cambridge and former H. G.Wood Professor at the University of Birmingham. He is the author of On the Philosophy of Karl Marx (Sceptre, 1969), Marxism and Christianity (Blackwell, 1983) and The Darkness of God (CUP, 1995). He is currently working on a book on Thomas Aquinas and the doctrine of God.