This is the most comprehensive encyclopedia of aromatherapy available today, with over 400 entries covering more than 200 conditions, and 82 essential oils. It explains the properties of essential oils and the health conditions that benefit from them. There is also advice on hazardous oils. There are recipes and formulae for baths, creams and tonics. All the entries are comprehensive, fluently written and provide an easy-to-understand introduction to a wide range of topics.