Helen Pashgian is one of the leading figures in the Light and Space movement. Like her colleagues Robert Irwin and James Turrell, Pashgian changed the course of art by arguing that a work is not defined merely by what is in the frame but is rather made in the perceptual system of the viewer. That is why for Pashgian, an artist needs to take into account the entire space of the viewing experience. In Pashgian’s lenses, this means that the walls of the gallery need to be coved, special lighting needs to be installed, and every color in the room controlled. Control and precision create the remarkable viewing experience of Pashgian’s lens work.