- Modern Essentials 10th Edition
- Modern Essentials: (6th Edition, 3rd Printing, Feb. 2015) A Contemporary Guide to the Therapeutic Use of Essential Oils
- Modern Essentials: (6th Edition, 2nd Printing, Sept. 2014) A Contemporary Guide to the Therapeutic Use of Essential Oils
- Modern Essentials Handbook
- Modern Essentials 11th Edition