I've been running a group through Candlekeep Mysteries themed as a wizarding school and for Candlkeep, a library is like a tavern for a regular adventure. Tilvane Library is on the smaller side compared to some of the other great libraries in Candlekeep. This library in particular though has a private study that was always requested by the mage Fistandia.
However, this could be used for the starting point of many of the adventures in Candlekeep. Or perhaps its a wing of a keep that is haunted or cursed with swarms of animated books.