Written for those who wish to delve deeper into the world of aromatherapy, this book includes: extraction methods for obtaining essential oils; the nature of different carrier oils; therapeutic oils versus perfume oils; plant families and the therapeutic qualities of their essential oils; the chemistry of essential oils; the relationship beteen components of essential oils and their effects on the body; and how to use essential oils for health, pleasure and enjoyment. Shirley Price is the author of Practical Aromatherapy.