Chris Argyris was an influential American organizational theorist known for his work on organizational learning and management. He was born on July 16, 1923, and passed away on November 16, 2023. Argyris is best known for developing concepts such as double-loop learning, which emphasizes the importance of questioning underlying assumptions in decision-making processes. Throughout his career, Argyris contributed to the fields of management theory and behavioral science. He served as a professor at Harvard Business School and published several books, including "Personality and Organization" and "Overcoming Organizational Defenses." His work has had a lasting impact on how organizations approach learning and change.