Beatrice Chestnut, PhD, is a practicing psychotherapist, coach, and business consultant based in San Francisco. She was the president of the International Enneagram Association (2006-2007) and founding coeditor of the IEA's Enneagram Journal (2008-2009).
Randye Kaye is an accomplished voice talent, actress, singer, broadcaster, and author. She received a Listen-Up Award nomination and starred reviews for Ben Behind His Voices, which she also wrote, bringing together the various facets of her career.