Cel animation is a traditional technique used in creating animated films and television shows. It involves drawing individual frames on transparent sheets called cels, which are then layered over a static background. Each frame is slightly different from the last, creating the illusion of movement when played in sequence. This method was widely used before the advent of digital animation. Artists would meticulously paint or ink each cel by hand, making the process time-consuming but allowing for rich, detailed visuals. Today, while many animators use digital tools, the charm of cel animation still influences modern animation styles.