Vivianne Crowley is a psychologist and was formerly a professor at the University of London, teaching psychology of religion at Master’s level and supervising PhD students. She is a Wiccan High Priestess and has been teaching Wicca and the Western Magickal Tradition internationally for thirty years. She is on the Council of the Pagan Federation where she focuses on interfaith issues. She is the author of many books on Wicca Paganism and spiritual psychology, including Wicca: A Comprehensive Guide to the Old Religion in the Modern World. The current focus of her spiritual work is in supporting and fostering the development of those who lead groups and teach others.