Columbia subject headings:
Art--Philosophy.
Information theory--Aesthetics.
Painting.
Reality.
Visual perception.
Harvard subject headings:
Art--Philosophy
Light in art
Mirrors in art.
Reflection (Optics) in art.
Reflections
Visual perception
Princeton subject headings:
Art--Philosophy.
Light in art.
Mirrors in art.
Reflection (Optics) in art.
Reflections.