Jeffrey Burton Russell is Professor Emeritus of History at the University of California, Santa Barbara. Besides UCSB, he has taught History and Religious Studies at Berkeley, Riverside, Harvard, New Mexico, and Notre Dame. He has published seventeen books and many articles, most of them in his special field, history of theology. His other books include a five-volume history of the concept of the Devil published by Cornell University Press between 1977 and 1988, 'Inventing the Flat Earth' (1991), and 'A History of Heaven: The Singing Silence' (1997).