In the vibrant downtown Manhattan art scene of the late 1970s and early 1980s, the Taiwanese-American artist Tehching Hsieh made a series of extraordinary performance art works. Between September 1978 and July 1986, Hsieh realized five separate one-year-long performance pieces in which he conformed to simple but highly restrictive rules throughout each entire year. Through the course of these lifeworks, Hsieh moved from a year of solitary confinement in a sealed cell to a year in which he punched a worker's time clock in his studio every hour on the hour to a year spent living without shelter in Manhattan to a year in which he was tied by an eight-foot rope to the artist Linda Montano and finally to a year of total abstention from all art activities and influences. These works were unparalleled in terms of their use of physical difficulty over extreme durations and in their absolute conception and enactment of art and life as simultaneous processes. In 1986 Hsieh announced that he w Adrian Heathfield is Professor of Performance and Visual Culture at Roehampton University, London. Tehching Hsieh is an artist based in New York City.