Robert K. Greenleaf was an American author and management consultant best known for developing the concept of servant leadership. He introduced this idea in his 1970 essay, "The Servant as Leader," which emphasized the importance of leaders serving their teams and communities. Greenleaf believed that effective leadership focuses on the growth and well-being of people. Greenleaf founded the Greenleaf Center for Servant Leadership in 1964, promoting the principles of servant leadership through education and research. His work has influenced various fields, including business, education, and non-profit organizations, encouraging leaders to prioritize empathy, collaboration, and ethical decision-making.