optical illusions

40 of Escher's most amazing prints and drawings in 3-D. Tessellating figures, impossible structures, strange metamorphoses, and skewed perspectives.

Provides simple instructions for creating a variety of visual tricks.

Presents more than two hundred optical illusions, from sixteenth-century paintings to twentieth-century advertisements to psychology illustrations, arranged by their visual effects.

Optical illusions form structures in which curious little men can go up stairs to get to a lower place, hang pictures on the ceiling, and walk on walls.

A series of computer-generated 3D picture puzzles that blend artistic expression with graphics technology.

Brief questions about the pictures on each page help point out examples of optical illusions.