Wallpaper is a popular interior design option for adding color, pattern, and texture to walls. It comes in various materials, such as vinyl, fabric, or grasscloth, and in a wide range of designs, from subtle textures to bold patterns. Installing wallpaper can be a quick way to transform a room, and it's often used to create focal points or accent walls. Make sure to choose the right type of wallpaper that suits your space and style preferences. If you need any specific guidance on selecting or installing wallpaper, feel free to ask!