How can I effectively remove water stains from an art print?

To effectively remove water stains from an art print, gently dab the affected area with a clean, dry cloth. Avoid rubbing the stain, as this can cause further damage to the print. If the stain persists, you can try using a mild solution of water and vinegar or a specialized art restoration cleaner. Test any cleaning solution on a small, inconspicuous area of the print first to ensure it does not cause any damage.