Valerie Hansen teaches Chinese and world history at Yale, where she is professor of history. Her main research goal is to draw on nontraditional sources to capture the experience of ordinary people. In particular she is interested in how sources buried in the ground, whether intentionally or unintentionally, supplement the detailed official record of China's past. Her books include The Silk Road: A New History, The Open Empire: A History of China to 1600, Negotiating Daily Life in Traditional China, and Voyages in World History (co-authored with Kenneth R. Curtis). In the past decade, she has spent three years in China: 2005-06 in Shanghai on a Fulbright grant; and 2008-09 and 2011-12, teaching at Yale's joint undergraduate program with Peking University.