The lecture is free and open to the public.
Walls is a pioneer in the study of non-Western Christianity.
He is currently a guest professor of religion at Princeton Theological Seminary in Princeton, N.J., and professor emeritus and curator for the Center of the Study of Christianity in the non-Western World at the University of Edinburgh, Scotland. Originally from Scotland, Walls began his teaching career at the University College of Sierra Leone in West Africa. Several years later he moved to Nigeria and headed the department of Religious Studies at the University of Nigeria, Nsukka. Walls has founded and edited several journals on religion. He has served as secretary of the Scottish Institute of Missionary Studies and the Society for African Church History.