To use these posters and prints, just find a nice spot on your wall and hang them up using your preferred hanging method like nails or sticky hooks. As for the prints, you can frame them for a more polished look. When it comes to maintenance, keep them away from direct sunlight to prevent fading. You can gently dust them off with a soft cloth. Be careful not to use any harsh chemicals as they might damage the print. Also, make sure to handle them with clean hands to avoid getting smudges on the surface.