Come see the genius of the renowned M.C. Escher
A reflecting globe rests in the artist’s hand. In the mirror he can have a much more complete view of his surroundings than by direct observation, for nearly the whole of the area around him – four walls, the floor and the ceiling of the room – are comprised, albeit distorted, within the little disc. His head, or to be more precise the point between his eyes, comes in the absolute center. Whichever way he turns he remains at the center. The ego is the unshakable core of his world.
Escher made three more spherical self-portraits during his life which examine the distortion of images reflected on a curved surface.