Library office
There is a Jinling Library on Changjiang Road.
A little further from suguo supermarket on Zhujiang Road, there is the Nanjing Library near the entrance of Southeast University.
Of course, there is a new Nanjing Library in Daxing Palace now, but it has just started to use. There seems to be no book in it.
The above three libraries should bring their ID cards and keep a photo. 100-200 yuan should apply for a card.
Once you have done it, you can use it. Generally, borrowing books takes 30 days as a cycle.