This document discusses different types of figuration and representation in art, including realism, abstraction, and non-objective art. It provides examples of works that use various techniques like camouflage, anamorphic projection, and optical illusions to manipulate perception. Specifically, it examines Constantin Brancusi's abstracted bird sculpture, Robert Lazzarini's distorted payphone sculpture, and Isamu Noguchi's levitating water fountains that use tricks and hidden supports to create illusions.