1. Original refers to the first edition of printed matter.

2. The revised version is mostly used to release products, which means that the original version has been improved or added, so it has been upgraded. Because some exam books must be updated in time to cope with the question bank, and some tutorial books must be upgraded with the upgrade of equipment, it is necessary to launch a revised version to greatly meet the latest readers' needs.

Second, the content is different.

1, the original refers to the untranslated original.

2. Revision refers to the modification, arrangement and binding of documents, books, manuscripts and charts. In WORD, revision refers to displaying marks that change positions in a document, such as deletion, insertion or other editing.

Extended data

Piracy identification method

I. Quality

1. Check the appearance of the book. Specifically:

(1) cover of preliminary examination. Compared with genuine books, the cover of pirated books is often incorrect in color, or dull and listless, or gorgeous and enchanting, and the color matching is often mixed. As long as they are often compared, it is not difficult to tell the difference between them.

(2) Second, look at binding. According to the practice in the publishing industry, a genuine book with more than 200 pages should be bound with lock thread, plastic thread or wireless instead of iron wire. However, due to the limitation of printing and binding equipment or cost reduction, pirates still use wire binding for pirated books with more than 300 pages and 400 pages.

(3) Look at the printing factory. Each publishing house has several fixed printing users, and each printing house has its own characteristics in paper, ink and printing.

2. Review the text of this book. Pirated books have three manifestations in the text:

(1) There are many misspelled words, other words, deviated words, derivatives and sick sentences;

(2) Typesetting is often irregular, sparse or dense, and the vision is blunt; The third one looks like a copy. Some pirated books are copied according to the original book without separate typesetting, which can avoid typographical errors and ugly typesetting, but there are many ink spots on the paper, and the handwriting is often swollen, which looks like a copy drilled from the copier.

3. Pay attention to book publishing information. Such as publishing house, ISBN, edition and so on.

Second, the price of genuine books is uniformly priced by the relevant departments, so the purchase discount of genuine booksellers is relatively high, and the purchase discount is similar. Therefore, buyers must shop around for books in online bookstores. For some books with ultra-low prices, you must ask clearly before buying, which is greedy for cheap.

Third, the source

It is best to choose some online bookstores with large scale and good credit when buying genuine books, because these sellers generally have more legitimate purchase channels.

Baidu encyclopedia-piracy

Baidu encyclopedia-original edition

Baidu encyclopedia-revised edition