Beatrice Chestnut, PhD, MA, is a psychotherapist, coach, and business consultant based in San Francisco. She holds graduate degrees in communication and clinical psychology and is the author of the books, The Complete Enneagram: 27 Paths to Greater Self-Knowledge, and The 9 Types of Leadership: Mastering the Art of People in the 21st century Workplace and co-author of The Enneagram Guide to Waking Up. A student of the Enneagram for over 30 years, she was president of the International Enneagram Association in 2006 and 2007. She currently works with leaders and teams and offers Enneagram workshops internationally through the school she co-founded with Uranio Paes, Chestnut Paes Enneagram Academy.