There are quite a few things you can do to preserve your favorite poster collection. To put them in a list, you should know that: • Tape is Evil - Tape residue can damage your posters, and you may use a tacking iron or a crepe eraser to get rid of it. Clean the Surface - Posters are often left neglected on the walls, and usually, no one cleans them. Giving your posters a gentle dusting can keep them looking fresh, lovely, and new. • Repair Tears - Tears are a normal part of a poster's life, and however, to a fan, this can be heartbreaking. You can use archival-quality tape or premium archival quality backing such as acid-free archival linen or buffered backing board to preserve your old pals. • Storing in Plastic Sleeves - Lastly, you can look into keeping your poster in a plastic sleeve. This will protect it from UV lights, dust, and unwanted exposure to harmful substances.