The Enneagram Made Easy: Discover the 9 Types of People
The Enneagram in Love and Work: Understanding Your Intimate and Business Relationships
The Essential Enneagram: The Definitive Personality Test and Self-Discovery Guide -- Revised & Updated
The Enneagram
The Contemplative Writer: Loving God through Christian Spirituality, Meditation, Daily Prayer, and Writing
You Learn By Living: Eleven Keys for a More Fulfilling Life
Happier at Home: Kiss More, Jump More, Abandon Self-Control, and My Other Experiments in Everyday Life