This document provides an overview of animation, including its definition, how it works biologically and psychologically, different types of animation spaces (2D, 2.5D, and 3D), animation techniques like cel animation and computer animation, common file formats used for animation, and tips for making successful animations. It discusses the animation process, how cel animation uses keyframes and tweening, how computer animation is similar but generates more frames automatically, and emphasizes using animation sparingly and properly compressing files for web display.