| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Oneselves: Multiple Personalities, 1811-1981 | 978-0-7864-6719-8 (0-7864-6719-3) | 2011 |
| Portraits of God: Word Pictures of the Deity from the Earliest Times Through Today | 978-0-7864-6720-4 (0-7864-6720-7) | 2011 |
| Turning Points: Pivotal Moments in the Careers of 83 Famous Figures | 978-0-7864-0626-5 (0-7864-0626-7) | 1999 |