The Cathars: The Most Successful Heresy of the Middle Ages
Sean Martin
The Sleepwalkers: A History of Man's Changing Vision of the ...
Arthur Koestler
The Complete Idiot's Guide to the Crusades
Paul L. Williams
Truth in Religion - The Plurality of Religions and the Unity ...
Mortimer Jerome Adler
Algorithmics for Hard Computing Problems
Juraj Hromkovič
Cunningham's Encyclopedia of Wicca in the Kitchen
Scott Cunningham