Talk about this question, it’s like going to a physical store to buy something, and it’s a very popular physical store. Can you guarantee that what you buy is 100% authentic? !
I have bought many books on Amazon, but the paper and printing are worse than those in physical stores, but they are still acceptable. After all, the cheap price is there, and people can only make fuss about it on paper.
The most important thing to note is that there is no 100% guarantee that every book is genuine. I once bought a pirated book, just like those sold at street stalls. It’s so annoying that I haven’t bought books for a long time. But I don’t have anywhere to buy books, so I’ve been patronizing it recently.
According to my experience, if you want to avoid buying pirated books on Amazon, don’t buy some books that are too obscure, because those books are not published by regular publishing houses. If you go to them to buy them, they will take them underground. The book from the publisher is here for you. What I bought at that time was a Feng Shui book. This is like going to a restaurant to eat. Never order dishes that few people eat. Because few people patronize these dishes, they will either go bad or become moldy.
The above is my personal opinion.