To use these Nightmare Santa posters and prints, simply choose a wall in your room where you want to display them. You can use regular wall hooks or adhesive strips to hang them up. Make sure the surface is clean and dry before hanging. As for maintenance, keep them away from direct sunlight to prevent fading. If they get dusty, you can gently wipe them with a soft, dry cloth. Avoid using any harsh chemicals or abrasive materials on them.