There are two kinds of self-study. One is that 10 has no fixed seat, and one card can be used ten times every two months. The other is that 15 has a fixed seat on the penultimate day of every month.

Borrowing money is more troublesome. There are many reading rooms with different types of materials. The price of each reading room is different, and the cost is different according to the length of your card. You'd better ask at the front desk.