An avatar is a digital image or character that represents a person in online environments. Avatars can be simple profile pictures, cartoon characters, or detailed 3D figures used in video games and virtual worlds. People choose avatars to express their personality, maintain privacy, or simply have fun with their online identity. In educational and civic technology contexts, platforms may offer avatar options so users can participate without revealing their real appearance. As virtual and augmented reality technologies advance, avatars are becoming more sophisticated, serving as digital representations in increasingly immersive online spaces.