Henrik Bogdan is Associate Professor in History of Religions at the University of Gothenburg. In addition to numerous articles, he is the author of Western Esotericism and Rituals of Initiation (2007) and editor of Brother Curwen, Brother Crowley: A Correspondence, by Aleister Crowley and David Curwen (2010).

Martin P. Starr was the editor of the Teitan Press series of the works of Aleister Crowley which appeared between 1985 and 2003. He is the author of The Unknown God: W. T. Smith and the Thelemites (2003), the first academic study of Aleister Crowley's followers in the USA.

Henrik Bogdan, University of Gothenburg
Tobias Churton, Exeter University
Gordan Djurdjevic, Simon Fraser University
Asbjørn Dyrendal, Norwegian University of Science and Technology in Trondheim
Robert A. Gilbert, editor of The Christian Parapsychologist
Wouter J. Hanegraaff, University of Amsterdam
Ronald Hutton, Bristol University
Massimo Introvigne, managing director of CESNUR (Center for Studies on New Religions), Torino, Italy
Richard Kaczynski, Yale University, the University of Detroit, and the Veterans Health Administration
Alex Owen, Northwestern University
Marco Pasi, University of Amsterdam
Keith Richmond, independent scholar
Matthew D. Rogers, independent scholar
Martin P. Starr, independent scholar
Hugh B. Urban, Ohio State University

"One would be hard-pressed to put together an assemblage of people to equal the scholars included in this collection-the cream of the crop of those esoteric scholars who have studied Crowley. The volume makes a significant contribution to esoteric studies and will set future debates about Crowley. It will be a must-read text for all esoteric scholars in the next generation."--J. Gordon Melton, Distinguished Professor of American Religious History, Baylor University