“Highly recommended to anyone that has an interest in aromatherapy and the energetic and vibrational aspects of essential oils.” - Kelly Holland Azzaro, Past President of the National Association for Holistic Aromatherapy. “An excellent resource . . . Kac’s work is thorough, easy to understand, and gives you the depth to want to delve into using oils on a regular basis.” - Ann Boroch, CNC, award-winning author of The Candida Cure.