This uniquely comprehensive reference book expands and advances one's understanding of aromatherapy. Jennifer Peace Rhind adeptly draws from a plethora of scholarly sources and scientific research to deepen our knowledge of essential oils and the activities of their individual chemical components. Her singularly meticulous approach is equally distinguished by thorough investigations into the biology, ecology, history and ethnobotany of aromatic plants as well as the therapeutic uses of their extracts. Further equipped with practical guidelines and formulas, this book is a must for aromatherapy enthusiasts and professionals alike.