Theory of Art was created in 1957-04.
Art theory
Western art criticism focuses on theory and philosophy.
Art Theory is like Music Theory.. a non-sequitor. Theory implies that there is a "science" to them, and while that is very loosely true, most art and music is a result of subjective tastes. That being said, art theory is the study of technique, medium, and style used by artists to create certain affects or feels. Just as one minor (and rather superficial example) in an art theory class you might study the use of shading to create the illusion of shadow and depth in a drawing.
This Is Not Art was created in 1998.
Art Is... was created in 1971.
The Art of Making Art was created on 2011-10-23.
Theory of a Deadman was created in 2001.
A Theory of Architecture was created in 2006.
Groove Theory was created in 1995.
Ascension Theory was created in 2002.
Planning Theory was created in 2002.
The Whole Theory was created in 2000.