Shenzhen library needs a reader's card to borrow books. If you don't have a reader's card, you can go directly to the library to read books. I only need my second-generation ID card and a deposit of 100 yuan to apply for a reader's card. The reader's card can be handled at the service desk of the library or in self-service library. It is suggested to handle it in self-service library. In addition, self-service library (equivalent to the bank's ATM) is open 24 hours, the library is open every Tuesday to Sunday, and it is closed every Monday to sort out books. If you have a reader's card, you can borrow books from the website of Shenzhen Library in advance, and then the library will send the books you need to self-service library.