The physical characteristics of the library such as architecture, layout, signs and displays, color, lighting, temperature, access, noise, assortment, prices, special events, etc., that serve as stimuli and attention attractors of users to the library or information agency.
Background sounds, such as wind, rain, or traffic noise, which add to the reality of a scene. These sounds are sometimes recorded right at the shooting location, creating what's called a wild track which is later mixed into the final soundtrack.