Listing over 1,200 symptoms, this is a practical first-aid guide based on sound crystal-healing principles that have been practiced for millennia. Crystals are a gentle, non-invasive system of holistic healing with no side effects. Suitable for children and animals, they can also benefit your environment and your home. Judy Hall is a therapist, astrologer and healer who has 25 years experience in the psychic field. A workshop leader for the College of Psychic Studies in London, she runs past life and psychic exploration groups all over the world. She is author of 11 books, including Principles of Past Life Therapy . Crystals Healing - General Holism