These 'Marshmallow Ghost' posters and prints are super easy to use. Just find a nice spot on your wall, and hang them up with thumbtacks or picture hangers. They're great for adding a spooky touch to your room, office, or even a party area. As for maintenance, keep them away from direct sunlight to prevent fading. If they get a bit dusty, you can gently wipe them with a dry cloth. Avoid using any wet or chemical cleaners as this might damage the print.