The Aromatherapy Practitioner Reference Manual
by Sylla Sheppard-Hanger
with contributing editors Galina Lisin, Martin Watt, David Moyler
For my money definately the best reference manual for any user of essential oils I have personally seen. Costing $125 ~ £80.00 plus postage this two volume set is absolutely full of information.
Includes Delivery methods, Vegetal oils and additives, Safety considerations, References to over 350 oils, a Clinical Index with information on Mental, Emotional, Psychic and Magikal info. Chakra index, and ayurvedic index. an index. of Biologically Active Phytochemicals and a glossary and selected Bibliography.
One page of the Aromatherapy Chart to show you part of information you get.