M. J. Abadie (1933-2006) was a professional astrologer and psychotherapist with a specialty in dream interpretation. She did archetypal research with mythologist Joseph Campbell for over 20 years and wrote numerous books on astrology, psychology, and spirituality. She authored the bestselling "Love Planets" and "Teen Astrology", and her "Everything Tarot Book" was placed on a Popular Paperbacks for Young Adults list by the Young Adult Library Services Association.