Wallpaper is a decorative material used to cover and enhance the interior walls of homes and buildings. It comes in various designs, colors, and textures, allowing people to personalize their spaces. Typically made from paper, vinyl, or fabric, wallpaper can be applied using adhesive or paste. In addition to aesthetics, wallpaper can also provide practical benefits, such as hiding imperfections on walls and adding insulation. It is available in rolls and can be easily installed or removed, making it a popular choice for home improvement projects.