The power of essential oils has been recognized for thousands of years. Today, the use of aromatherapy is growing rapidly as greater numbers of people experience the benefits and life-enhancing properties of these precious substances. Aromatic essences can have a direct effect on our health, reduce our stress levels, and enable us to have a better overall outlook on life, as well as improve our relationship with our natural environment. These raw materials are also an important ingredient in perfumes, fragrances, cosmetics, and skin and body care products, and are extensively used for flavoring foods and beverages. Carol Schiller and David Schiller, recognized experts in the field of aromathera py, have created the most comprehensive reference guide on the market to date.