Series Type Interpretations Interpretation/Approach The Enneagram describes three centers of human intelligence — the head, heart, and body — nine interconnected personality types, and 27 subtypes. Related Links The Chestnut Group About Beatrice Enneagram Roadmap YouTube Channel Related Books and Media Related Videos Crash Course on the Nine Enneagram Types , Interviews with Beatrice Chestnut Type 1 Enneagram Panel - Beatrice Chestnut Type 2 Enneagram Panel - Beatrice Chestnut Type 3 Enneagram Panel - Beatrice Chestnut Type 4 Enneagram Panel - Beatrice Chestnut Type 5 Enneagram Panel - Beatrice Chestnut Type 6 Enneagram Panel - Beatrice Chestnut Type 7 Enneagram Panel - Beatrice Chestnut Type 8 Enneagram Panel - Beatrice Chestnut Type 9 Enneagram Panel - Beatrice Chestnut