It is an additional service to facilitate library users who need to return books urgently or return books outside the library’s opening hours by using the book drop service at the entrance of the Center for Library Resources and Educational Media Building on the 1st floor. Users can return books 24 hours every day, regardless of the opening-closing date of the library. In case of being late for the returning deadline, please contact the staff to pay the fine according to the regulations during office hours.