Katherine Ketcham has been writing nonfiction books for forty years. Her work has been published in sixteen foreign languages and has sold nearly one million copies. She founded and serves on the board of a grassroots nonprofit organization called Trilogy Recovery Community, which helps youth and their family members dealing with alcohol and other drug problems. Ketcham lives in Walla Walla, Washington.

Dr. Arthur Ciaramicoli is director and chief psychologist of the Alternative Therapy Center of the Metrowest Medical Wellness Center in Natick, Massachusetts and is an instructor at Harvard Medical School.