First try to just peel it off. A fair number of the ones I have will come off. If not, remove the page from the book & microwave it for like 10 - 20 - 30 seconds. You will need to experiment a bit. This usually will heat the glue a bit and you can peel the paper right off. Stand right there & don't walk away. Use tweezers. Be careful!
Here's a pic of the best staple remover to get the books apart. It's a swingline.