Maxwell E. Johnson is emeritus professor of liturgy at the University of Notre Dame and a retired presbyter in the Evangelical Lutheran Church in America. His numerous publications are on the origins and development of early Christian iturgy, contemporary rites, and current ecumenical and theological questions in both East and West. He is the author and/or editor of more than twenty books and over one hundred essays and articles. He is also a former president of the North American Academy of Liturgy, a member of the Society of Oriental Liturgy, a member of Societas Liturgica, and a member of the scientific advisory board for the journal Ecclesia Orans.