Applying wallpaper is a job that requires skill and patience. It involves pasting wallpaper onto walls, ceilings, or other surfaces to create a decorative effect. The process of applying wallpaper involves measuring the surface, cutting the wallpaper to size, and then pasting it onto the surface. It is important to ensure that the wallpaper is applied evenly and without any air bubbles or creases. Once the wallpaper is applied, it should be allowed to dry before being trimmed and finished.