The Geomancer's Handbook: Divination and MagicIn the Geomancer's Handbook the renowned contemporary mage and geomancer John Michael Greer explains this ancient divinatory art clearly and succinctly, allowing the practitioner quick mastery of this precise and accurate method of prediction. Because geomancy uses a good deal of astrological technique, it is an excellent predictive method for astrologers without requiring the arduous effort necessary to learn traditional horary astrology. Greer