Nontoxic reusable favorite of museum curators, archival restoration experts, and libraries Absorene Paper & Book Cleaner the original formula dry cleaner that works like an eraser by drawing dust and dirt from surfaces. Non abrasive Absorene Paper & Book Cleaner absorbs dust, dirt, smoke and grimy film from paper objects such as books, prints, wallpaper and paintings. It is also an excellent cleaner for cloths such as lampshades, textiles, and cloth bound books. For use soften putty in hands until the putty is soft and pliable (adding a little water if product has dried out) and massage into surface then wipe lightly in one direction. Crumbs left behind can be vacuumed or brushed away. As with all cleaning products, please test carefully before use.