Simon Lilly has been working in healing and self-development since 1985. He has trained in crystal therapy with The Institute of Crystal and Gem Therapists and as a colour therapist and kinesiologist. Sue Lilly is a practising therapist, specializing in kinesiology and colour healing. Susan is the author of a system called Crystal Doorways that combines colour, shape and crystals for self development and healing. Both Simon and Susan travel around the country giving courses and lectures in colour and crystal healing, and have written several articles and books on their specialist subjects.