Roger Ballen ; introduction by Robert J.C. Young. Jos Jansen ; introduction by Robbert Dijkgraaf. with an introduction by Robert A. Maguire with an introduction by Robert Gittings with an introduction by Robert Polito. with an introduction by Robert Mighall. Robert Coover ; introduction by T.C. Boyle. and an introduction by Robert Macfarlane with a new introduction by Roger Pilon. with an introduction by Robert DeMott