This document discusses different types of animation including cel animation, 2D animation, 3D animation, and Flash animation. Cel animation involves drawing characters on clear sheets and placing them over backgrounds to film frame by frame. 2D animation creates the illusion of movement through sequenced images, while 3D animation uses computer modeling and rendering. Flash animation is commonly used to create online cartoons, games, and advertisements due to its capabilities for dynamic content and low bandwidth. The document also covers applications of these animation techniques.