Robin S. Brown, PhD, is a psychoanalyst in private practice who has served on faculty at Columbia University, Pacifica Graduate Institute and the California Institute of Integral Studies. His first book, Psychoanalysis Beyond the End of Metaphysics: Thinking Towards the Post-Relational (Routledge, 2017), won the American Board and Academy of Psychoanalysis Book Prize. This was followed by Groundwork for a Transpersonal Psychoanalysis: Spirituality, Relationship, and Participation (Routledge, 2020).

Mark Saban, PhD, is a senior analyst with the Independent Group of Analytical Psychologists. He was until recently the Director of the M.A. in Jungian and Post-Jungian Studies at the University of Essex. His book, Two Souls Alas: Jung's Two Personalities and the Making of Analytical Psychology (Chiron, 2019), won the International Association of Jungian Studies' Best Book of 2019.