Generally, it is the first printing, but compared with the printed edition, some books are printed by the publishing house after the first printing, which is in short supply, and there are also the second and third editions. Genuine is relative to piracy, and formal publications are genuine. There is no difference between the original book and the original book, and the published book has no collection value, unlike the ancient block-printed version, which is very different. However, if the book you want to buy is a Taiwanese version or a Hong Kong version, and then a simplified version is published in Chinese mainland, you should pay attention to whether the mainland version will be abridged, and everything else will be fine. Besides, books in Taiwan Province and Hongkong are particularly expensive.
legal ground
Copyright Law Article 31 The exclusive publishing right of a book publisher shall be protected by law according to the contract, and no one else may publish the work.