Find the best Art Theory lessons, classes, and instructors at HeyKiki and learn about the many Art Theories that have been explored. Art Theory is essentially the philosophy of art, otherwise known as aesthetics. Well-known theorists include Hans Hofmann, Robet Motherwell, Barnett Newman, and Fairfield Porter. Theories are are a major driver for many artists as they have influenced their ultimate creative expression over the course of history. For the creative, those looking to be inspired, or seeking to observe and analyze art theories from around the world, Art Theory is the subject to pursue.