James J. Berg, Chris Freeman, The Isherwood Century: Essays on the Life and Work of Christopher Isherwood. Madison: University of Wisconsin Press, 2001 (Paginae selectae apud Google Books)
Katherine Bucknell, ed., Christopher Isherwood: Diaries. Vol. 1, 1939-1960. Londinii: Methuen, 1996. ISBN 0-413-69680-4