Drawings of optical illusions and impossible figures, called paradoxes, fascinate every child. Optical illusions designate as a collective term all aspects of human vision.
Optical illusion – Three or Four?
On the one hand, this can happen when we see things differently than they really are through a particular presentation, or when different people in the same template recognize other things or even things are drawn in a way.
By clicking on the picture, the template opens in pdf format: