Professor of History of Art at SOAS, University of London. He has also taught at numerous other universities including Chicago, Heidelberg, Meiji and Waseda. He is an expert on the art and culture of the Edo Period, including its international dimension, and has published some dozen books on the subject. His best-known work is probably Sex & the Floating World, a study of erotica, and he has recently completed a field-defining overview of the Edo arts, Obtaining Images. His work has been translated into French, Japanese, Korean, Polish and Romanian.