Yi-Fu Tuan is professor emeritus in the Department of Geography at the University of Wisconsin. He is widely considered the founder of human geography, and is the author of many books, including¿Cosmos and Hearth¿(1996) and¿Space and Place(new edition, 2001), published by the University of Minnesota Press. He is also the author of books on desert landforms, China, the history of ideas, and an autobiography, ¿Who Am I?¿(1999).