Unfortunately they are legitimate books, for sale on Amazon and probably other sites. Probably publicly sourced content, so they can be produced for little cost, similar to books composed of Wikipedia content. Some people seem to be confusing them with the actual book, but that just means people should be more discerning when they shelve or rate something. Make sure the title, author, and ISBN matches what you read or want to read.
https://www.goodreads.com/search?utf8...