For a lighter poster, you can apply an adhesive such as double-sided tape, glue dots, or poster tack to the back. For a heavier poster, you may prefer to use pairs of adhesive wall strips outfitted with Velcro patches. There are also some posters that lock into place with magnets. The heaviest posters can be framed for easy hanging. These weighty wall adornments may be mounted with Velcro, magnet hangers, or picture hardware.