John W. Lewin

John W. Lewin was a prominent figure in the field of psychology, best known for his contributions to understanding human behavior and group dynamics. His work, particularly in action research, emphasizes the importance of involving participants in the research process to create practical solutions to social issues. Lewin's theories on group behavior, including concepts like "groupthink" and the idea of "unfreezing" and "refreezing" change in organizations, have had a lasting impact on social science and organizational development. His insights continue to influence how we approach teamwork, leadership, and systematic change in various settings.