Diana Fosha, PhD, is the developer of AEDP®, a healing-based, radically relational, transformation-oriented experiential psychotherapy, and Founder and Director of the AEDP® Institute. She is the editor of Undoing Aloneness and the Transformation of Suffering into Flourishing: AEDP 2.0 (APA, 2021); co-editor with Natasha Prenn of Supervision Essentials for Accelerated Experiential Dynamic Psychotherapy (APA, 2016); co-editor with Dan Siegel and Marion Solomon of The Healing Power of Emotion: Affective Neuroscience, Development & Clinical Practice (Norton, 2009); and author of The Transforming Power of Affect: A Model for Accelerated Change (Basic Books, 2000). Based in New York City, where she lives and practices, Fosha has been on the faculties of the Departments of Psychiatry and Psychology of NYU and St. Luke's/Roosevelt Medical Centers (now Mount Sinai) in NYC, and of the doctoral programs in Clinical Psychology at the Derner Institute for Advanced Psychological Studies at Adelphi University and at The City University of New York.

Daniel Hughes, PhD, is a clinical psychologist and author who developed Dyadic Developmental Psychotherapy. He lives in Annville, Pennsylvania.