An authority on ancient belief systems, traditions, runes, and geomancy, Nigel Pennick is the author of several books, including The Sacred World of the Celts, Secret Games of the Gods, and The Ancient Science of Geomancy. He lives near Cambridge, England, where he follows the oral tradition and Pagan lore of his native East Anglia.
Christopher Vasey, N.D., is a naturopath specializing in detoxification and rejuvenation. He is the author of The Acid-Alkaline Diet for Optimum Health, The Naturopathic Way, The Water Prescription, The Whey Prescription, and The Detox Mono Diet. He lives near Montreux, Switzerland.