Interior wallpaper is a decorative material used to cover and enhance the walls of indoor spaces. It comes in various patterns, colors, and textures, allowing homeowners to express their personal style. Wallpaper can be made from paper, vinyl, fabric, or other materials, and it is often applied with adhesive. Installing interior wallpaper can transform a room's appearance, making it feel more inviting and stylish. It can also help to hide imperfections on walls and provide insulation. Maintenance varies depending on the type of wallpaper, with some being washable and others requiring special care.