T. B. · T. I. · True Indigo
North Atlantic Books · Sacred Gyre Books
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| A Personal Aristocracy: Cultivating the Power of Spiritual Nobility | 978-1-55643-866-0 (1-55643-866-4) | 2010 |
| The Principle | 978-0-9831476-0-2 (0-9831476-0-4) | 2011 |