There are two ways: 1. When logging in to Guangtu official website, there is a renewal icon in the upper left corner of official website's homepage. Follow the online instructions to renew the loan step by step. If the borrowing function is enabled with the ID card, the ID number is the reader's ID number, and the password is the last six digits of the ID card (if the last digit of the ID number is a letter, it is the last five digits plus the last letter).

2. Call Guangtu to renew the loan, and the staff will renew it for you. (The phone number is the phone number on the reader's card, or log in to official website to see the phone number on it. )

In addition, when you borrow books, you can also say "I want to renew them" to the staff, and the staff will help you operate them, so the books you borrow will be kept for 2 months.

I hope I can help you. I wish you happy reading!