books The Enneagram Guide to Waking Up: Find Your Path, Face Your Shadow, Discover Your True Self By Chestnut PhD, Beatrice, Paes MM, Uranio The Complete Enneagram: 27 Paths to Greater Self-Knowledge By Beatrice Chestnut The 9 Types of Leadership: Mastering the Art of People in the 21st Century Workplace By Chestnut, Beatrice