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 J. Siegel, MD, a noted neuropsychiatrist and bestselling author,?is the cofounder of Mind Your Brain, the founder and director of education of the Mindsight Institute, and founding codirector of the Mindful Awareness Research Center at UCLA. He resides in Santa Monica, California. Marion Solomon, PhD, is a lecturer at the David Geffen School of Medicine, Department of Psychiatry at UCLA. She is co-editor with Dan Siegel of several books in the IPNB Series, including Healing Trauma and How People Change.