As long as the published books have anti-counterfeiting pages, the physical book mushrooms must have anti-counterfeiting pages.
Steps to distinguish piracy from right: First, see if there is an anti-counterfeiting page or related QR code behind it. This kind of piracy is generally not available. Secondly, if it is genuine, there will be many gifts (such as stop signs, postcards and posters) or signatures (special signatures, seals and autographs). If it is pirated, there will be some gifts (mostly postcards, and sometimes postcards other than novels) or high imitation signatures. Third, the original books are generally thick, and there will be a scent of ink, no typos, and clear handwriting. Some original books may be a little yellow after being left for a long time.