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 So Not and George Maple co-produced a track for Australian rapper Tkay Maidza, titled "Ghost". The song was premiered on Triple J. On 9 September 2016, Emerson released the 6-track "Divide & Conquer" EP, which includes previously released track "Lone". In October 2016, What So Not, George Maple and Djemba Djemba co-produced a track on Australian rapper Tkay Maidza's debut album, titled "Afterglow". On 3 November 2016, RL Grime released the single "Waiting" in collaboration with What So Not and Skrillex which was in production since 2013. The track's release was teased through a promotional video which parodied chat-line advertisements and featured