Provides a clear and authoritative reference to aromatherapy for the serious student and for all therapists open to natural and alternative answers in modern healthcare settings. The authors demonstrate that aromatherapy and aromatology can bring real therapeutic help to many patients. Hundreds of references on the properties and actions of essential oils have been sourced for this New Edition. Only uses eminent practitioners as references using their trial and pilot studies and case studies Provides updated information on aspects of aromatherapy oils and additional information on carrier oils as well as greatly expanded information on aromatherapy worldwide. Treats the subject at a level appropriate for the professional reader Two new chapters on carrier oils and aromatic waters 5 new essential oil profiles