Gotz Aly is a freelance journalist and historian living in Berlin. He is also the author of Final Solution (Arnold, 1999) and co-author of Cleansing the Fatherland : Nazi Medicine and Racial Hygiene (John Hopkins University Press, 1994).
Karen Armstrong spent seven years as a Roman Catholic nun, an experience she recollected in her two volumes of best-selling autobiography, Through the Narrow Gate and Beginning the World. She is the author of the world-wide best-seller, A History of God (which has now appeared in more than thirty languages), the acclaimed History of Jerusalem and, most recently, The Battle for God. She is a teacher at the Leo Baeck College for the Study of Judaism and, in 1999, she received the Muslim Public Affairs Council Media Award.