Renewal of books in Huai 'an Library: Readers can log in to Huai 'an Library to make an appointment to renew books with their library card (within the validity period, there is no record of arrears). The service system to be updated. Every book can be renewed continuously. The renewal period is the book lending period of various certificates, that is, from the execution date of renewal operation. The request for renewal of borrowed books submitted on the day of borrowing is invalid. Expired books and books reserved by other readers cannot be renewed. Book reservation in Huai 'an Library: Readers can renew their books by logging in to Huai 'an Library's book renewal reservation service system with their own borrowing cards (within the validity period, there is no record of arrears). Reservations can only be made if the books have been lent (including renewal). If a book is reserved by more than one person, the reservation time shall prevail. If the reserved book is not returned within the scheduled time, the reservation will automatically become invalid. Readers are required to check the book reservation at any time. When the status is "books to be borrowed", you must borrow books from the library within 7 days. Make an appointment in seven days. Will automatically become invalid, and must pay a penalty of 0.30 yuan per copy.