Readers who lose their books during the loan period should immediately report to the library and buy back the books of the same edition within 15 days. If you can't buy back the same version of the book, a single book will be compensated at 3 times the original price. If one volume or one volume of multiple volumes or complete sets of books is lost, compensation shall be made according to the original price of the volume, and other volumes and volumes shall still be returned to the library. After paying compensation for the lost books, readers can retrieve the original books within one month from the date of compensation. When there is no defect, they can return the original books to the library, and the library will return the compensated books or return the compensation with the compensation receipt.