Genuine books refer to books legally authorized by authors or copyright owners and printed and published by publishing houses or other institutions with publishing rights.

An unauthorized book not published by the original author or publisher.

2. Different layouts

Pirated books generally have bright cover colors and muddy handwriting. The cover paper is thin and the offset glue overflows. Pirated books can be judged from many aspects, and the harm of pirated books is countless.

Genuine books have good color, good clarity, good cover paper quality, good book paper quality and good book binding. The hardcover edition may lack the plug cloth (plug cloth: silk cotton strip cloth with round dense rib at one end. Stick it on both ends of the spine to protect the spine incision and increase the aesthetic feeling of the book. ) or without front and rear ring linings.

3. Different copyright pages

The original version is usually printed with CIP data on the back of the title page or at the end of the text. The ISBN on the copyright page is the same as that on the back cover barcode.

Inconsistency is generally piracy. There are also inferior pirated books with no copyright pages at all. It is excluded that the copyright page of a set of books is in the first volume, and the barcode is in the last volume or in the last volume, but this time the set of books must have the same title and book number.

Baidu encyclopedia-pirated books

Baidu Encyclopedia-Genuine Books