Aidan Nichols' timely book is the first full-scale investigation of Joseph Ratzinger's theology, from the 1950's to the present day. It presents a chronological account of the development of Ratzinger's writing which reflects a wide range of historical and theoretical interests. A comprehensive introduction to a figure who is in his own right, quite apart from his significance in the politics of the Church, a major German Catholic theologian of the twentieth century. This new edition provides amplifies existing chapters by reference to books by Ratzinger between 1986/1987 and his election as