The scanning code of a book is not the basis for judging whether the book is a regular newspaper. Book bar code is a book identification bar code generated according to the book international standard book number distributed by the publishing house. Book scanning code (mobile phone WeChat scanning book bar code) is not the basis for determining whether the book is a regular publication newspaper. Barcodes can facilitate the sale of books in shopping malls or bookstores (including some large online book sales stores, such as JD.COM and Dangdang). As a commodity management, the purchase information of books can be entered into the commodity warehouse system. When readers buy books through shopping malls and bookstores, they can see the relevant commodity information of the book by scanning the code. Therefore, only when books are sold in large-scale book shopping malls and online stores and entered into the commodity library information system, can you see the relevant book commodity purchase information through mobile phone code scanning.