Yi-Fu Tuan is Vilas Professor Emeritus at the University of Wisconsin-Madison. His many books include Dear Colleague, and his autobiography Who Am I? is also published by the University of Wisconsin Press, Tuan's fondness for his hometown, Madison, is suggested by his essay ""Reflections,"" which muses over the photographic paitings revealed in Zane Williams' recently released book Double Take: A Photographic Survey of Madison, Wisconsin.