Venetian blinds operate through a system of horizontal slats that can be tilted to control light and privacy levels. These slats, typically made of aluminum, wood, or vinyl, are connected by cords or strings that allow them to be raised, lowered, or tilted. By adjusting the tilt of the slats, users can regulate the amount of sunlight entering the room while still maintaining privacy. Pulling on the cords raises or lowers the entire blind to cover or expose the window entirely. Venetian blinds offer a versatile solution for light and privacy control, making them a popular choice for both residential and commercial spaces.