If you want to read a book, you need to apply for a reader's card in Guo Tu with your ID card. It's free to get a card. After completing this card, you can read in many reading rooms in Guo Tu. Chinese, foreign languages, newspapers, books, magazines, etc. Are acceptable. Reading these books with a card is free. If you want to borrow books, you need to pay a deposit of 100 yuan. If you have a master's degree or above, you need to pay a deposit of 1000 yuan to handle the book lending function (of course, the scope of books that can be borrowed with a master's degree or above is different from that of ordinary readers. So the deposit is more expensive. But if you want to cancel this lending function, you can return it all with a deposit slip.