Earlier quoted context omitted.
How would that stop people from getting ripped off by fakes?
fakes wouldn't come with a token that verifies the book is authentic. They are doing the same thing with luxury watches and fashion items. i.e. the real Gucci purse comes with an NFT, (likely NFT + NFC) for authentication and coms with the brand.
The target of the scammers is someone browsing Amazon, who isn't going to know to look for an NFT. Someone familiar with the author is just going to check the author's website and see the list of books they've published.