| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Ken Wilber in Dialogue: Conversations with Leading Transpersonal Thinkers | 978-0-8356-0766-7 (0-8356-0766-6) | 1998 | Sean M. Kelly |
| The Engaged Spiritual Life: A Buddhist Approach to Transforming Ourselves and the World | 978-0-8070-7725-2 (0-8070-7725-9) | 2006 | |