He uses found photos, botanical illustrations, maps, and other such imagery to build up layered oil paintings, and in the process, using some printmaking techniques. By creating depth through layering, Judd's paintings evoke memories that draw the viewer in to look even deeper into the history of the composition. Judd's paintings focus on the past by using nostalgic memorabilia that has strong cultural significance and by letting the past layers of the paintings inform the new ones.