George A. Kohlrieser is an organizational and clinical psychologist, and a distinguished professor of leadership and organizational behavior at IMD Business School in Switzerland. His work focuses on high performance leadership, high performance teamwork, conflict management, change management, dialogue and negotiation, coaching, the person effect, stress management, work-life balance, and personal and professional development. He is also a police psychologist and hostage negotiator focusing on aggression management and hostage negotiations.