Official website of Nanjing Library introduced that readers need to return their reading cards. Before returning the reading card, you must pay off the borrowed books and settle the related expenses. You can take back the original reading card after returning the card, and you can't apply for a new card within 30 days after returning the card.

Borrowing rules of Nanjing Library: one card can borrow 10 books at a time for 30 days. Books that have not expired can be renewed once, and the date of renewal will be postponed for 30 days; The overdue fee of 0. 1 yuan/day/volume must be paid for overdue books, and the maximum fee for each volume is 20 yuan.