2. Line Direction

Horizontal lines, as in this picture of the horizon, imply a sense of rest and calmness. On the contrary, diagonal lines would indicate movement and action.

7. Lost and Found Contour

This is an example of lost and found contour because there are heavy shadows on the figures faces, making part of their face non-visible. If you were to trace the actual contour lines of their faces, there would be holes missing where the heavy darkness is.

46. Illusion of Motion by Multiple Image

By reading the images from left to right, it appears as though the horse is actually running; even though each image is a still frame. This is an illusion of motion by a repetition of images.

45. Illusion of Motion by Blurred Outline

This blurred outline makes the girl look like she is turning her head to the side. This technique is present in photographic images as well.

44. Illusion of Motion by Repeated Figure

In this classic painting, there is a repetition of an abstract man going down stairs. By repeating the same shape over and over but moved in a different direction, it appears to have actual motion.

43. Anticipated Motion

The instability of this image creates anticipated motion. We know, from gravity, that the top coin is about to topple over the whole stack. This is an anticipated movement.

42. Spatial Puzzles (Equivocal Space)

 

This is an example of a spatial puzzle because the shapes over lap and are transparent, making it hard to decipher which is actually on top of which. We as a viewer, lose our sense of depth because we cannot judge which is, in fact, closer.