Anti-theft magnetic stripe for pasting books. There are a large number of books in Shanghai Library. In order to prevent loss, it is necessary to use an anti-theft lock, and the operation method is to stick it on the anti-theft magnetic strip. A library is an institution that collects, sorts out and collects books and materials for people to read and refer to. As early as 3000 BC, libraries appeared. Library has the functions of preserving human cultural heritage, developing information resources and participating in social education.