Robert K. Greenleaf published two posthumous essay collections (available at Greenleaf.org). Today scores of colleges and universities include Servant Leadership in their curricula and hundreds of companies embrace Greenleaf's philosophy. As Greenleaf strived to serve through education, he became the leader of a movement. Bass, B. M., and Stogdill, R. M. (1990). "Bass & Stogdill's Handbook of Leadership: Theory, Research, and Managerial Applications" (3rd ed.). New York:Free Press. Frick, Don M. (2004)." Robert K. Greenleaf: A Life of Servant Leadership." San Francisco: Berrett-Koehler Publishers. Greenleaf, R.K. (2003). "The Servant-Leader Within: a Transformative Path" New York: Paulist Press. Greenleaf, R. K. (2002). "Servant Leadership:
Robert K. Greenleaf not be further deprived?. Implementing Greenleaf’s ideas in modern American institutions is anathema to many leaders and followers, who desire a different paradigm that is based on coercive power and control rather than legitimate power based on mutual agreements. Greenleaf’s book, however, is the text for anyone interested in connecting the two often disparate terms, servant and leader. His work addressed these two questions in particular: How can leaders serve people? What is the source of legitimate power? Through the next twenty-five years Greenleaf served as a consultant to such notable institutions as MIT, the American Foundation for Management Research,