Martin Euwema: Martin Euwema is full professor for Organizational Psychology at the University of Leuven, Belgium, chair of the research group O2L (Occupational and Organizational Psychology and Professional Education), and co-director of the Leuven Centre for Collaborative Management. Martin is past-president of the International Association for Conflict Management (IACM). His research interests are leadership, HRM and industrial relations, conflict management and mediation. Martin has extensive experience as consultant and mediator in organizational conflicts.   Francisco J. Medina: Francisco J. Medina is professor of  Social and Organizational Psychology and Dean of the Faculty of Psychology at the University of Seville (Spain). He is co-editor of the Journal of Work and Organizational Psychology and member of the academic chair of the Doctoral Program on Psychology of Human Resources between the University of Seville and the University of Valencia. Francisco is chair in Spain of the EUROPSY certificate in Work and Organizational Psychology. He collaborates with the Ombudsman office in Andalusia and with the Andalusian Mediation System (SERCLA) in the improvement of the mediation. Ana Belén García: Ana Belén García is a researcher at KU Leuven and the University of Seville in the department of Work and  Organizational Psychology. Her focus is on conflict management in organizations. After studying psychology at the University of Seville, she obtained her MSc at Maastricht University in the specialization of Work and Organizational Psychology.  She was coordinator of two European research projects on industrial relations, including a project on mediation in collective organizational conflicts in 12 European countries. She holds a PhD in Psychology from the University of Seville and KU Leuven exploring conflict management strategies in collective negotiations in organizations. Ana Belén García is also a registered mediator.  Erica Pender: Erica  Pender is a researcher at KU Leuven and the  University of Seville in the department of Work and  Organizational Psychology. Her focus is on the role of  trust in social dialogue. After studying psychology at the University of Seville, she obtained her MSc at Maastricht  University in the specialization of Work and  Organizational Psychology. She was coordinator of two European research projects on industrial relations, including a project on mediation in collective organizational conflicts in 12 European countries. She holds a PhD in Psychology from the University of Seville and KU Leuven focusing on trust and trustworthiness between employee representatives and managers.  Erica Pender is also a registered mediator.