Beatrice Chestnut, PhD MA is a licensed psychotherapist, coach, and business consultant based in San Francisco. She has a PhD in communication studies, and an MA in clinical psychology. A student of the Enneagram system since 1990, she is 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 book , The Enneagram Guide to Waking up: Find Your Path, Face Your Shadow, Discover Your True Self . She has taught at Northwestern University and trained in group facilitation at Stanford University's Graduate School of Business. She currently offers Enneagram workshops internationally through the school she co-founded with Uranio Paes, Chestnut Paes Enneagram Academy . In their work around the world, Beatrice and Uranio focus on using the Enneagram as a tool for personal and professional transformation.