Explanation of optical art, an artistic development in the 1960s, and how it achieved its singular effects

Rings of seahorses seem to rotate and butterflies seems to transform into warriors right on the page. Astonishing creations of visual trickery by masters of the

The art of optical illusion has been an integral part of painting since antiquity when it was used as a yardstick by which to judge an artist's level of mastery

From impossible shapes to three-dimensional sketches and trick art, you won't believe your eyes as you learn to draw optical illusions in graphite and colored p