Dowsing with a pendulum, or radiaesthesia, is the most direct form of divination. In this excellent overview, divination expert Cassandra Eason offers both a how-to and a history of the powerful art of pendulum divination, with exercises progressing from simple to advanced. In addition to the theories and practices of dowsing, Eason explains the properties of different pendulums and how to choose the best one, shows how dowsing can act as a door to the psychic world, and more.