Theatrical set design is the art of creating the physical environment in which a play or performance takes place. It involves designing and constructing backdrops, props, and furniture that help to establish the time and place of the story. Set designers work closely with directors and other production team members to ensure that the visual elements support the narrative and enhance the audience's experience. The process of set design includes research, sketching, and building models to visualize the final product. Designers often use materials like wood, fabric, and paint to create realistic settings. Successful set design can significantly impact the overall mood and tone of a production, making it an essential aspect of theater, film, and television.