Robert L. Gallagher (PhD, Fuller Theological Seminary) is a professor emeritus of intercultural studies at Wheaton College Graduate School. He is an ordained minister of the Australian National Council of CRC Churches International and the Christian and Missionary Alliance in the United States. He is coauthor of Encountering the History of Missions: From the Early Church to Today, Christ among the Nations: Narratives of Transformation in Global Mission, and Readings in Global Christianity: Post-Apostolic to 1800 AD. Edward L. Smither (PhD, University of Wales-Trinity Saint David; PhD, University of Pretoria) is professor and dean of intercultural studies at Columbia International University. He spent fourteen years in intercultural ministry in North Africa, France, and the United States. He is author of numerous books, including Christian Mission: A Concise Global History.