John Harvey is Professor of Fine Art, Head of the School of Art, and Director of the Centre for Studies in the Visual Culture of Religion at the University of Wales, Aberystwyth. He is an art practitioner and art historian, and the author of The Art of Piety: The Visual Culture of Welsh Nonconformity (1995) and The Image of the Invisible: The Visualization of Religion in the Welsh Nonconformist Tradition (1999).