Peregrine Horden is Professor of Medieval History at Royal Holloway, University of London. He is co-author, with Nicholas Purcell, of The Corrupting Sea (2000), and author of Hospitals and Healing from Antiquity to the Later Middle Ages (2008).
Sharon Kinoshita is Professor of Literature at the University of California, Santa Cruz. She is Co-Director of the UCSC Center for Mediterranean Studies, and Co-Director of the UC Multicampus Research Project in Mediterranean Studies. Her publications include Medieval Boundaries: Rethinking Difference in Old French Literature (2006).