Masters of Deception
Check out this site: Masters of Deception
The movies of artists such as M.C. Escher either discussing their work or showing their work are spellbinding to me. My favorite ones are the pile of forks, and spoons which project a shadow of a motorcycle, but look nothing like it without the shadow, and the drawing which looks like a lot of nothing, but when a mirrored cylinder is placed in a particular spot, it shows a portrait of M.C.Escher in the reflection of the print.
Courtesy of Kevin Kelly’s Cool Tools site.