- The Psychology of Existence: An Integrative, Clinical Perspective
- The Handbook of Humanistic Psychology: Leading Edges in Theory, Research, and Practice
- Rediscovery of Awe: Splendor, Mystery, and the Fluid Center of Life
- Existential-Integrative Psychotherapy:: Guideposts to the Core of Practice
- Existential–Humanistic Therapy (Theories of Psychotherapy Series®)














