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 Frank Robert Frank Robert Frank (born November 9, 1924) is a Swiss-American photographer and documentary filmmaker. His most notable work, the 1958 book titled "The Americans", earned Frank comparisons to a modern-day de Tocqueville for his fresh and nuanced outsider's view of American society. Critic Sean O'Hagan, writing in "The Guardian" in 2014, said "The Americans" "changed the nature of photography, what it could say and how it could say it. [ . . . ] it remains perhaps the most influential photography book of the 20th century." Frank later expanded into film and video and experimented with manipulating photographs and