Iran do Espírito Santo has been active since the 1980s and works in a variety of media and materials, including sculpture, wall painting, and installation. His work frequently questions the relationship between object and image, actuality and representation, and often has a direct physical relationship to the site in which it appears. Light, transparency, and reflection are frequent subtexts in his work. Though he has developed his own personal vocabulary of impeccably fabricated forms and materials, Espírito Santo’s work is rooted in—and makes clear reference to—minimalism, Concrete art, Pop art, and Conceptual art. Restless 20 and Restless 21 are a proposed reformulation of two works from his “Restless” series (1999–2007). Each element is made from a single piece of glass that has been cut and treated in order to appear as several overlapping sheets of glass. Espirito Santo uses mirroring and sandblasting to give sections of each glass sheet different qualities of reflection and transparency. Placed on the floor and leaning against the wall, the two pieces look like a series of glass panes, mirrors, and monochrome canvases awaiting installation. Only upon closer inspection do we realize that they are—in a sense—“paintings,” as much illusion as material.