ISBN is the logo of the book (also called the book number), which only represents the ID of the book. The ISBN of each book must be applied to the library object code center, so the ISBN itself is not genuine. If it is not genuine, ISBN can't find the corresponding information.

However, just because ISBN is true doesn't mean that the book is true, because ISBN is just a number and bar code.

Anyone can print it, so the barcode of the book number behind the non-genuine book can be the same as the genuine book, but the book is indeed non-genuine. The so-called non-genuine books do not mean unauthorized publication, in order to reduce the printing quality and sell them at low prices for profit.

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