① Sticking the magnetic stripe, a special consumable for anti-theft of books, in the gap of books has good concealment.

② Install anti-theft antenna for books in the borrowing channel or the main entrance and exit of the library.

(3) Books that normally go through the borrowing formalities are invalidated by special degaussing equipment, or delivered from the anti-theft antenna side, and the borrowing is completed.

(4) When books (books with magnetic stripes) that have not gone through the normal procedures pass through the exit, the book anti-theft antenna will detect the books that have not been degaussed and give an audible and visual alarm, and the borrower will go through the borrowing procedures again.