Dr. Erich Keller
Erich Keller has been involved in the field of aromatherapy since 1988, doing research, consultations, and workshops. He is the author of The Complete Handbook of Aromatherapy and lives in Germany.
Erich Keller has been involved in the field of aromatherapy since 1988, doing research, consultations, and workshops. He is the author of The Complete Handbook of Aromatherapy and lives in Germany. See less