Hello, your letter has been acknowledged. After receiving your complaint, our leaders attached great importance to it. After investigation, your complaint is true. On behalf of all the staff in the library, I would like to express my deep apologies to you. We severely criticized the staff, punished them according to the management system of our library, and held a special work meeting to urge all staff to take a warning, pay attention to improving the quality of work and service, and create a good reading environment for readers. At the same time, thank you for your support and concern for the work of our library. Your complaint is an inspiration to our work. I hope that you will continue to care and cherish our library in the future and witness the improvement of our service quality.