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 Powell (author) that point relatively undisturbed coastal vegetation. The later publications were more studies of the potential plants for utilisation in the Perth metropolitan area. Robert has also worked for CALM and written and produced photographs for its publications on plants, as well as other subjects Robert Powell (author) Robert Powell is a botanical author from Perth, Western Australia who has co-written a number of books with Jane Emberson about the plants and trees of the Swan Coastal Plain and adjacent Darling Scarp. His book "An old look at trees.." was the careful archival retrieval of rarely seen photographs of coastal vegetation,