Kessinger Publishing, LLC · Steiner Books
| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Becoming The Archangel: Michael's Companions: Rudolf Steiner's Challenge To The Younger Generation | 978-0-88010-609-2 (0-88010-609-3) | 2007 |
| Gates of Knowledge | 978-1-56459-765-6 (1-56459-765-2) | 1997 |