Since 1977, Mierle Laderman Ukeles has been a volunteer artist-in-residence at the New York City Department of Sanitation, allowing her to introduce radical art into a public system. Since she wrote the Manifesto for Main-tenance Art (1969), virtually all of Ukeles’s work has been public. Recent permanent commissions include Percent for Art Fresh Kills Landfill Project, New York City, the world’s largest landfill; Schuylkill River Park, Philadelphia; Creative Time, New York City; and Ayalon Park, Israel. Her temporary exhibitions include installations about Israel’s landfill at the Tel Aviv Museum, and Unburning Freedom Hall at the Los Angeles Museum of Contemporary Art.