John Harley Warner is the Avalon Professor of the History of Medicine at Yale University. He is also a professor of history and American studies as well as the chair of the history of medicine department at the Yale Medical School. He teaches undergraduate, graduate, and medical students, and is a core faculty member in Yale's program in the history of science and medicine. His work focuses on health and healing cultures in America from the late eighteenth century through the present with particular attention to professional identity, the visual culture of medicine, and transnational comparison. He is the author of The Therapeutic Perspective: Medical Practice, Knowledge, and Identity in America, 1820–1885 (1986) and Against the Spirit of System: The French Impulse in Nineteenth-Century American Medicine (1998), and a coauthor of Dissection: Photographs of a Rite of Passage in American Medicine, 1880–1930 (2009). He is also a coeditor of Major Problems in the History of American Medicine and Public Health (2001), Locating Medical History: The Stories and Their Meanings (2004), and the forthcoming "Translating the Body: The History of Medical Education in Southeast Asia." He is now at work on a book tentatively entitled "The Quest for Authenticity in Modern Medicine."