Let me tell you a true story.
It happened exactly 20 years ago when I was in the 4th grade. I was 10 at that time and a bookworm already. There was a new library at my school and it was like a wonderland for me when I saw the shelves were being filled with tons of new colorful and whimsical books. The library got my attention and I knew that day that I had to borrow one of them.
I asked around, to my teachers and to my friends on how to borrow the books. My friends shrugged, my teacher shook her head, no one gave me clear answers. Since the library is quite new, there was no official librarian yet (and never was, at least that condition lasted until I finished my elementary school) so I couldn't really blame my friends nor class teacher.