Interior designers draw upon many disciplines to enhance the function, safety, and aesthetics of interior spaces. Interior designers are concerned with how different colors, textures, furniture, lighting, and space work together to meet the needs of a building’s occupants. Designers are involved in planning the interior spaces of almost all buildings—offices, airport terminals, theaters, shopping malls, restaurants, hotels, schools, hospitals, and private residences. Designers help to improve these spaces in order to boost office productivity, increase sales, attract a more affluent clientele, provide a more relaxing hospital stay, or increase the building’s market value.