Venetian blinds are a type of window covering made of horizontal slats that can be adjusted to control light and privacy. These slats are typically made from materials like wood, aluminum, or vinyl and are connected by a cord system that allows them to be tilted or raised. The design of Venetian blinds enables users to easily change the angle of the slats, letting in varying amounts of sunlight while blocking direct glare. They are popular in homes and offices for their versatility and ease of maintenance, making them a practical choice for many spaces.