The crystal bible．volume 1：the definitive guide to over 200 crystals.．Vol. 1 / The crystal bible．volume 2：the definitive guide to over 200 crystals.．Vol. 1 / The ayurveda bible :：the definitive guide to ayurvedic healing / The Pilates bible :: the definitive guide to Pilates exercises / The astrology bible :：the definitive guide to the zodiac / The colour bible：the definitive guide to colour in art and design The healing plants bible :：the definitive guide to herbs, trees and flowers /