Work 2 10 hours a month, 7:45-22:00, and take a day off the day before, which is the same on Saturday and Sunday. No insurance, no overtime pay. The contract will never be given to you. When signing the contract, the contract term and salary are empty. Just fill in the name and ID card information, not the date. After signing, the company will take it back. Maybe you have been forced to sign a contract for more than ten years. In-depth communication with the library staff of various universities, or ask people who used to work in the company, or you will know when you go. Not much else to say!