
200 Chapter 9 Animation
The familiar flipbook can present dozens of images on a series of pages, each show-
ing a different stage of a motion. As the pages are rapidly flipped beneath the thumb,
the motion, such as a person walking, is displayed. The flipbook illustrates several addi-
tional elements of animation. First, the quality of the motion will depend on the rate of
display—very slow flipping produces jerky, unnatural motion. Second, assuming an
adequate rate of flipping, the speed of the motion will depend on the differences
between the images—larger variations in the positions of arms and legs from one draw-
ing to the next will ...