| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2012 | 978-0-9857861-0-6 | Elizabeth Wagele | The Enneagram of Death: Helpful insights by the 9 types of people on grief, fear, and dying |
| '' | 978-0-9857861-1-3 | C J Fitzsimons | The Enneagram Journal (Volume 5) |
| 2013 | 978-0-9857861-2-0 | Bart R. Wendell | Hot Leaders Cool Facilitators: Learning to Lead One Meeting at a Time |