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:
What Katy Did up: "What Katy Did at School" and "What Katy Did Next". Two further sequels relating the adventures of Katy's younger siblings were also published—"Clover" and "In the High Valley". The books were frequently reprinted and all are available online. Coolidge modeled Katy on her own childhood self, and the other 'Little Carrs' on her brothers and sisters. The title is a play on the katydid, a family of insects – which explains the insects on the first edition book cover. 12-year-old Katy Carr lives with her widowed father and her two brothers and three sisters in Burnet, a small midwestern