The library at my university had four floors and a basement. The higher the floor the quieter you were supposed to be, so you were welcome to talk on the ground floor but would get glares or carefully chosen words on the top floor. I loved this system. If I wanted to work but didn't mind the chit chat then I was fine on the ground floor, but if I needed to concentrate then I could move.

I recall using a library book for research once. Other than that, I made use of the public computers to work on projects that were stored on Google Drive.