A conversation with Dr. Barry Duncan - co-editor of The Heart and Soul of Change: Delivering What Works in Therapy and On Becoming a Better Therapist: Evidence-Based Practice One Client at a Time - about the good, the bad, and the ugly in counseling and psychotherapy, the origin of the common factors, and how to become a more effective therapist through client feedback.
The "Three Sisters" Barry mentioned can be found at:
The Heart and Soul of Change Project
Additional Resources