"Hello Walter! I use Lindner Adhesive Removal Fluid, which you can obtain from most Coin and Stamp shops, or On-Line at EBay. It is specifically formulated to preserve the gum of postage stamps while being professionally removed from…"
"In over 35 years in bookselling, we have tried not to remove older labels like this as in many cases they add to the provenance, even helps proves the book was bought new in a bookstore. For price stickers on dust jackets or inside, we use rubber…"
"It depends on the shape of the book itself and how long the label has been on it and what was actually used to adhere it to the page, but sometimes using a very low heat from a hair dryer will make the adhesive loosen enough for you to gently pull…"