The Mystery of Silhouettes

Is this a front view or a back view of the lady?
Silhouettes and shadows are two-dimensional images that can confuse us. We live in a three-dimensional world which provides us with depth-perception clues that disambiguate what we see. Much of our visual input today comes from movies, television, and computer screens that give us just a two-dimensional focal plane that can result in ambiguities which cannot be resolved by our brain.
Ever since fire was invented, we have used the shadows formed on walls for entertainment. Here are some books that show you some simple tricks.
© Copyright - Antonio Zamora