To use these Dark Green Philly Icons posters and prints, simply choose a wall in your room. You can use tape or picture hangers to put them up. Make sure the surface is clean and dry. As for maintenance, keep them away from direct sunlight to prevent fading. If they get a little dusty, you can gently wipe them with a dry cloth. Also, be careful not to bend or crease the posters and prints to keep them looking great.