To use these posters and prints, simply find a nice spot on your wall and hang them up using nails or adhesive strips. Make sure the surface is clean and dry before hanging. When it comes to maintenance, avoid exposing them to direct sunlight for long periods as this may fade the colors. You can gently dust them with a soft cloth every now and then to keep them looking great. Also, be careful not to get them wet, as it might damage the print. Enjoy adding a spooky vibe to your place with these awesome pieces!