The history of Draco has to be documented and preserved.
The many tomes and scrolls of Draco Library need filing, organising, relocating and retrieving, not to mention any new books
and scrolls that need archiving (and the many debates over exactly where that should be).
Draco Library is so vast, even the librarians can get turned around and even lost in the labyrinthine aisles. Some monks have entered only to emerge many days later with the item they went in to retrieve.