With regard to books, Scotch magic tape does more harm than good. (It might seem perfect at the moment it is applied, but over a period of time the glue will eventually seep into the page.) You would have been better off either leaving the tears as-is, or using archival tape which is especially made for repairing torn book pages.
Not an archrival repair. Would have thought a library would do a better job, especially since its an old hardcover book! The orginal person did ok with puting the sticker on the mylar protector.
Hello sir, thanks for your video. I would like to ask for some advices, while trying to repair one of my books which has a dust cover. I was thinking in send you some pictures, since the cover has a pretty unique, at least I think, damage, in order to you to advice me with the correct thing to do. Please let me know if I can contact you by email.