FOR TWO WEEKS IN APRIL 1983, Ian Wallace sat at a desk reading Kierkegaard’s On the Concept of Irony at Vancouver’s Or Gallery from midnight until 1 AM. The front door was locked, but Wallace was visible through the storefront window to occasional passersby. The performance, At Work 1983, also resulted in a film (later transferred to video), a backlit transparency, photographs, and prints. In 2008, Wallace restaged the performance, again transforming a gallery—this time Catriona Jeffries—into a kind of ersatz studio, with the change documented in four of his signature diptych canvases