visual perception

Presents visual puzzles and optical illusions, using the rules of perspective and visual perception to trick the mind.

Text and illustrations look at different optical illusions.

Presents nearly three hundred optical illustions along with an explanation for how each works.

Presents visual puzzles and optical illusions, using the rules of perspective and visual perception to trick the mind.

Discusses some important paintings and sculpture in terms of design elements and also from the viewpoint of the artist. Includes questions and art activities.

Presents thirteen interactive exercises and ten step-by-step demonstrations designed to help people develop their drawing skills by silencing their logical nature and letting their artistic side take over.

Demonstrates the artistic use of contrast and its existence in the real world.

Presents puzzles to view within a time limit accompanied by questions to test the reader's skill in observation.