1. Different sources
The source of special price books is basically the inventory of major publishing houses, and some of them are booksellers' price reduction promotions. These books are published through formal and legal channels from application to printing to final distribution.
Pirated books are books printed and published privately by a few lawless elements for personal benefit. These books are not authorized by the book copyright owner and approved by the publishing management department, which violates the Copyright Law of People's Republic of China (PRC) and seriously infringes on the legitimate rights and interests of copyright owners and readers. According to the plate making and printing process of pirated books, it can be divided into the following three types:
1). Books printed privately by the printing unit without strictly abiding by the contract with the publisher.
2). Re-enter the original book, re-make the plate, and then print it.
3). Scan the original book and print it.
2. The quality of books is different.
Special price books are genuine low-priced books, and all aspects of books, paper, typesetting, printing and binding are strictly controlled, and the quality is guaranteed.
For pirated books, in order to pursue efficiency and publishing speed, at the same time, due to the limitations of personnel, equipment and technology, books often have quality problems such as thin paper, uneven ink color, blurred graphics, inaccurate overprinter, and even typos, missing lines and wrong pages. Readers can make a careful comparison.
Source: Jiahu Special Book Network