Robert K. Greenleaf A Journey into the Nature of Legitimate Power and Greatness" (25th anniversary ed.). New York: Paulist Press. Hesse, H. (2003). "The Journey to the East" (H. Rosner, Trans.). New York: Picador. (Original work published in 1932). Spears, L. C., ed (1998). "Insights on Leadership: Service, stewardship, spirit, and servant-leadership". New York: Wiley. Warneka, T. H., (2008). "Black Belt Leader, Peaceful Leader: An Introduction to Catholic Servant Leadership". Ohio: Asogomi. Robert K. Greenleaf Robert K. Greenleaf (1904–1990) was the founder of the modern Servant leadership movement and the Greenleaf Center for Servant Leadership. Greenleaf was born in Terre Haute, Indiana in
Robert Collier (author) Robert Collier (author) Robert Collier (April 19, 1885 in St. Louis, Missouri – 1950) was an American author of self-help and New Thought metaphysical books in the 20th century. He was the nephew of Peter Fenelon Collier, founder of "Collier's Weekly". He was involved in writing, editing, and research for most of his life. His book "The Secret of the Ages" (1926) sold over 300,000 copies during his life. Collier wrote about the practical psychology of abundance, desire, faith, visualization, confident action, and personal development. Robert Collier Publications, Inc. still exists through the efforts of his widow, and now his