A reference book for 1) general information on the principles and safe use of aromatherapy and the properties and applications of essential oils and carrier oils, and 2) specific information about the aromatherapy products offered from Essential 3, an aromatherapy company. Covers main biochemical components and physical, psychological, and subtle uses of essential oils. Includes quick reference guides, essential oils and synergies for systems of the body, and recommended reading. Describes special blends for hospice use.