Priscilla Costello is a teacher, writer, and counseling astrologer based in Toronto. She frequently travels to the U.S. to see clients and lecture. She has been instrumental in the organization of Canadian astrology and currently serves on the Advisory Board of NCGR. Her Master's thesis on Gnosticism and Jungian psychology (1993) won the Master's Scholar Award from the NE Association of Graduate Schools. She is founder and Director of the New Alexandria, a center for spiritual and esoteric studies.

James Wasserman is a lifelong student of esotericism. His writings include The Mystery Traditions: Secret Symbols and Sacred Art, and Aleister Crowley and the Practice of the Magical Diary. His Chronicle Books edition of The Egyptian Book of the Dead: The Book of Going Forth by Day features the fullcolor Papyrus of Ani with integrated English translation. The Templars and the Assassins: The Militia of Heaven has thus far been published in six languages. His controversial The Slaves Shall Serve: Meditations on Liberty defines political freedom as a spiritual value. His newest book is An Illustrated History of the Knights Templar. He is currently editing a series on Western occultism known as The Weiser Concise Guides. You can find him online at [...] He lives in New York City with his wife Nancy.