Marianne Williamson\'s "A Return to Love: Reflections on the Principles of A Course in Miracles" is a book that explores the spiritual and psychological teachings of the Course in Miracles
From Wikipedia
Marianne Deborah Williamson is an American self-help author, speaker, and political activist. She began her professional career as a spiritual leader of the Church of Today, a Unity Church in Warren, Michigan. Williamson has written several self-help books, including A Return to Love: Reflections on the Principles of A Course in Miracles in 1992, which became a New York Times Best Seller. She rose to prominence through frequent appearances on Oprah Winfrey's show, and becoming known as her "spiritual advisor".