| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1983 | 978-0-9611124-0-0 | David Christopher Lane | Making of a Spiritual Movement: The Untold Story of Paul Twitchell and Eckankar |
| 1992 | 978-0-9611124-2-4 | David Christopher Lane | Understanding Cults and Spiritual Movements |
| 1993 | 978-0-9611124-6-2 | '' | The Making of a Spiritual Movement: The Untold Story of Paul Twitchell and Eckankar |