Overdue materials cannot be renewed. Renewal is only possible if no other person is on the wait list seven days before due date. You can log on to your “Personal Library” account from the Kaohsiung Library Homepage by entering your library card number or ROC ID number and password (6-digit or 7-digit date of birth in ROC Year format). After accessing, you can see the books currently being borrowed and decide if you want to renew. For more information, please check the following link .