"We all know books burn -- yet we have the greater knowledge that books cannot be killed by fire. People die, but books never die. No man and no force can abolish memory... In this war, we know books are weapons."
I put clear packing tape over ALL the labels I put on books, always. I know the Tiny Stickers that I put on the spine of every book tend to pop off, so I always cover them, and I've gotten in the habit of putting clear packing tape over all my bookplates and labels, the ones from the Supply Store as well as the ones I print myself at home, since the ink from my printer tends to run when it gets damp. This protects them and makes it harder for finders to peel off.