| title | ISBN-13 | year of publication | |
|---|---|---|---|
| Das offene Geheimnis | 978-3-442-11835-9 | 1989 | |
| Therapy and the Arts: Tools of Consciousness | 978-0-06-090429-6 | 1977 | |
| The Truth about the Truth: De-confusing and Re-constructing the Postmodern World | 978-0-87477-801-4 | 1995 | |
| The Upstart Spring: Esalen and the American Awakening | 978-0-201-11034-0 | 1983 |
Addison-Wesley · Goldmann Verlag · HarperCollins · Tarcher