Working as both an artist and a writer, Donald Judd sought to overthrow traditional definitions of painting and sculpture. In their place he proposed specific objects that would occupy the same gallery space as the viewer. Judd worked in a pared-down aesthetic with industrially produced materials, a style that came to be known as Minimalism.

 In his embrace of a reductive and geometric vocabulary, Judd's essential form was the box: open, closed, or even stacked in repetition. Instead of creating his pieces in a studio, Judd would have them fabricated by a factory, thereby ensuring a perfect finish. Here, Judd uses the box form to combine structure, color, and material. The brilliant red of the interior bottom reflects against the side panels, fusing surface and light. Further, by placing the object directly on the floor, as opposed to resting it on a pedestal or base, Judd not only emphasizes the object-like quality of the piece but also thrusts Untitled into the physical space of the viewer.