Spheres III, 1946
particularly intrigued by reflections and by the concept of a
sphere acting as a mirror. Here, the central sphere that reflects
Escher at work is flanked by one, at left, filled with water, and
at right, by another opaque sphere. All three spheres
are reflected in the polished surface on which they rest.
The spheres at right and left are reflected in the center sphere.
Finally, the entire composition is seen as the drawing on the
paper reflected in the central sphere.