The borrowing rate and circulation rate of books in libraries are high, and books may be infected with bacteria in the process of borrowing and circulation. Therefore, it is very necessary to clean and disinfect books regularly. Remind the public that if you want to keep your books for a long time, you need to disinfect them from time to time. The easiest way is to bask in the sun. Or disinfect with ultraviolet radiation. If necessary, you can also take the books to the library and disinfect them with a self-service book sterilizer.