"My practice is both collage and décollage at the same time," says Mark Bradford. "Décollage you take it away, and then collage, I immediately add it right back." Using a combination of signage from the city streets, including business advertisements and merchant posters, twine, and glue, Bradford produces wall-sized paintings and installations that are a reflection of "the conditions that are going on at that particular moment at that particular location," he says.