Books are a huge dumpster fire in general. Amazon is full of mass spam from extremely low quality editions of books printed by print-on-demand companies. There

Books are a huge dumpster fire in general. Amazon is full of mass spam from extremely low quality editions of books printed by print-on-demand companies. There are literally hundreds of editions of some public domain books which are all "republished" POD works or sometimes even just Wikipedia articles on the book. And Amazon will show all the reviews together, so you buy based on the reviews of a reputably published version of the book, and instead get an awful quality POD book or even just two pieces of laminated paper with a printout of a wikipedia article.