Aromatherapy AZ is a fresh and easy step-by-step reference guide. The authors have compiled a vast amount of information on essential oils, humankinds first medicine. Well-preserved oils were found in alabaster jars in King Tuts tomb, and in biblical times, frankincense, myrrh, rosemary, hyssop, and spikenard were used for anointing and healing the sick. Essential oil recipes and blends were found in the Bible and ancient Egyptian hieroglyphics.