Maria Apostolopoulou, MSc, is a licensed Psychologist specializing in Relational Psychoanalytic Psychotherapy and Interpersonal Yalomian Group Psychotherapy. She is a Faculty Member of the Institute for Relational & Group Psychotherapy (IRGP, Greece), a supervisor and an educator in the programs “Master in Clinical Skills based on Relational Psychotherapy / Relational Psychoanalysis for Mental Health Professionals” and “Master of Applied and Theoretical Specialization in Group Psychotherapy by Irvin Yalom and the Relational Dynamics of the Group” of the IRGP and in “New Relational Psychoanalytic Psychodrama” of the Educational Institute of Integrative Psychotherapy (EKISYP). She is one of the three co-conductors of IRGP’s continuous Large Group and several international Large Groups, as well as one of the writers of the first and second collective book -in Greek- of relational psychoanalysis and group dynamics (published by Disigma Publications, July 2023). She is co-founder and co-director of the psychotherapy center ‘in-between’ based in Athens, Greece. She studied Clinical and Health Psychology at Leiden University, Netherlands, and Modern Psychoanalysis at Tampa Bay Institute for Psychoanalytic Studies, Florida. She has a special interest in group dynamics of conflict and the collective unconscious.