Rather, they are the work of visual artists, who have used their insights into the workings of the visual system to create visual illusions in their pieces of art.

Chinese philosophy of art had emerged in Wei and Jin period, the best -known work "Carving a Dragon at the Core of literature" had completed construction of ancient aesthetics system of China.

This highly refined system is loaded with advanced features that are ingeniously designed into an ergonomic, clutter-free work of art.