Advisers and Contributors numerous publications include Roman Coins and Their Values (1964; rev ed., 2000–2005), Byzantine Coins and Their Values (1974, rev ed., 1987), Greek Coins and Their Values (1978–1979), and The History and Coinage of the Roman Imperators, 49–27 b.c (1998) Robert Shanafelt, Ph.D., teaches courses in anthropology, religion, and Africana studies at Georgia Southern University He has published a number of articles on different aspects of life in southern Africa, among them, “Crime, Power, and Policing in South Africa” in Democratic Policing in Transitional and Developing Countries (2006) Alison Sheridan, Ph.D., is head of early prehistory in the National Museums Scotland, Edinburgh, specializing in the British and Irish Neolithic and Bronze Age Exhibition work includes Heaven and Hell—and Other Worlds of the Dead (2000), for which she was lead curator and book editor Other books include From Sickles to Circles (with A M Gibson, 2004) and Vessels for the Ancestors (with N M Sharples, 1992) Spyros Siropoulos is senior lecturer of Greek philology and history at the Department of Mediterranean Studies, University of the Aegean, Greece He has published various articles in three books: Unlike a Woman: Gender and the Social Function of the Athenian Tragedy (2003), The Goat’s Skin: The Other Side of Alexander the Great’s Power (2003; in Greek with English summary), and The Things after Alexander: The Centrifugal Potencies of the Hellenistic Kingdoms (2005, in Greek) Bradley Skeen, M.A., has taught at the University of Minnesota, Webster University, and Washington University He is a specialist in magic, religion, and philosophy in late antiquity and has contributed to research in that field in Die Zeitschrift für Papyrologie und Epigraphik, among other journals Christopher Smith, D.Phil., is professor of ancient history at the University of Saint Andrews in Scotland He is the author of Early Rome and Latium: Economy and Society c 100–500 b.c (1996) and The Roman Clan: From Ancient Ideology to Modern Anthropology (2006) as well as editor of several collections of essays, including Trade, Traders and the Ancient City (with Helen Parkins, 1998); Sicily from Aeneas to Augustus (with John Serrati, 2000), and Religion in Archaic and Republican Rome and Italy: Evidence and Experience (with Edward Bispham, 2000) He is engaged in work on Roman historiography and oratory Nancy Shatzman Steinhardt is professor of East Asian art and curator of Chinese art at the University of Pennsylvania She is author of Chinese Traditional Architecture (1984), Chinese Imperial City Planning (1990), Liao Architecture (1997), and Chinese Architecture (2002) and more than 60 scholarly articles xi Tom Streissguth is a freelance author, editor, and journalist who has published more than 70 nonfiction and reference books His most recent titles include Clay v United States, Genghis Khan’s Mongol Empire, Library in a Book: Hate Crimes, Eyewitness History: The Roaring Twenties, and the Greenhaven Encyclopedia of the Middle Ages Ananda Cohen Suarez is a Ph.D student at the Graduate Center of the City University of New York, specializing in pre-Columbian and colonial Latin American art history She is particularly interested in cross-cultural encounters, vernacular religious art, and manuscript production in the early colonial Americas Frank J Swetz, D.Ed., is professor emeritus of mathematics and education, Pennsylvania State University His research interests focus on cultural and societal impact on mathematics learning and teaching Among his recent books are Legacy of the Luoshu: The 4000 Year Search for the Meaning of the Magic Square of Order Three (2002) and Teaching Mathematics to Children (2003) John Thorburn, Ph.D., is associate professor of classics at Baylor University, where he teaches a variety of subjects dealing with the classical world He has published on Greek tragedy, Greek comedy, Greek and Roman history, and a variety of ancient subjects He is the author of The Alcestis of Euripides (2002) and the Facts on File Companion to Classical Drama (2005) Alain Touwaide, Ph.D., is a historian of sciences in the Department of Botany of the National Museum of Natural History at the Smithsonian Institution (Washington, D.C.) He has extensively published on the history of medicine in the Mediterranean world from antiquity to the Renaissance Recently, he coedited the volume Visualizing Medieval Medicine and Natural History, 1200–1550 (2006) Francesca C Tronchin, Ph.D., teaches Greek and Roman art and archaeology at Ohio State University Her primary area of research is Roman domestic decor and issues of eclecticism in ancient sculptural displays David K Underwood, Ph.D., teaches Western humanities, art history, philosophy, and Latin American studies at the University of South Florida in Tampa and at Saint Petersburg College in Clearwater, Florida He is the author of two books and several articles and essays on Iberian and Latin American art and architecture David Vallilee is an independent scholar Frans van Koppen, M.A., teaches Akkadian at the School of Oriental and African Studies, London He contributed to The