Tod A. Marder is professor of art history at Rutgers University, New Jersey. He has lectured and published widely on the Pantheon, the art and architecture of Bernini, and many related topics. His work has earned fellowship support from the Samuel H. Kress Foundation, the American Council of Learned Societies, and the American Philosophical Society, among others. He is the author of Bernini and the Art of Architecture (1998), which received the thirty-fifth Daria Borghese Prize for best book on a Roman topic by a non-Italian author. Mark Wilson Jones is senior lecturer in architecture at the University of Bath. His research concentrates on ancient architecture and its design, along with the ramifications for developments since the Renaissance. He is the author of Principles of Roman Architecture (2000), the first book to be awarded both the Banister Fletcher Prize and the Alice Davis Hitchcock Prize.