If you borrow a book you should not mark it and you should remember to return it. I sued to keep post it notes on my filing cabinet every time I lent a book and put a note in my diary for when the person said they would return it. It was not a fool proof system and I lost some.
I was brought up not to mark my own books. I now regret that as I have found it useful over a life time to know when I first read it. Now I mark my own books an highlight them if I wish.
Good Morning Sunday 28th April 2024