JOEL A. CARPENTER has a PhD from John Hopkins University, USA, and is professor and provost emeritus of Calvin University in Grand Rapids, USA, where he was also the founding director of the Nagel Institute for the Study of World Christianity. His current work includes consulting on research and faculty development projects in world Christianity, chairing the board of Langham Partnership USA, and editing a book series, Studies in World Christianity, with Baylor University Press. His most recent publications include are Christianity and Social Change in Contemporary Africa (Langaa, 2020), co-edited with Francis Nyamnjoh.