Abstract art could either be a painting or sculpture that does not look exactly like a person or thing in t he real world, but could be very exaggerated, simple, and distorted. The subject can be identified only by shapes and brush stroke
Representational Art is something that is easy to understand by people. It makes reference to a person, place, or thing.
Non-Representational art is the opposite of representational art. It does not refer to a person, place, or thing and is similar to abstact art.
Abstract and Non-Representational Art are very similar, however Abstract sort of refers to an actual thing. While Non-Representational Art does not at all make reference to anything in the natural world.
Non Representational ^ Representational ^ Abstract ^