I do hate to see library books vandalised, though I have sometimes use pencil in my own property.
Sadly, as with everything, people who get a free service show no respect.
It seems a very long time since I borrowed a book from the library that has not been marked "discreetly" by regular library users.
From what I notice, people choose to put a dot over a particular page number, or monogram somewhere, often on the front or back cover, and they always use biro.
I assume they do it so they can check if they have read the novel before, or not. Whatever the reason it still defaces library property!
Elvis died 45 years ago today…