The indispensable guide to a great teaching of our times. Published in 1976, the mysterious teaching known as A Course in Miracles has changed the lives of millions with its uncompromising discipline of profound forgiveness. In 2019, the New York Times identified the Course as an “esoteric bible that has gone mainstream” — providing guidance and inspiration to the rapidly growing number of people who think of themselves as “spiritual but not religious.” Drawn from over thirty years of original research, interviews, and personal study, this book provides the most reliable overview of the Course available today. Updated from the first edition published in 2008, this Second Edition details the remarkable Course history, summarizes its central messages, and provides an exhaustive review of the Course legacy by surveying both critics and the most knowledgeable teachers of the path.