I’ll go with the low-hanging fruit: Mein Kampf. I’ve read it, cover to cover. As a piece of propaganda, it’s good. As an example of good writing? Absolutely not (though I will admit I have only read it in translation). Oh, and the whole fascist, racist, and generally shitty worldview of the author that he infuses into the text. And the fact that the author is literally Hitler. You 5-star that book? You’re a Nazi. Period. And as a Jewish person, I don’t look too kindly on them.
Most self-help books are just buzzword after buzzword with no backing apart from shitty anecdotal evidence written by already rich people who use their name to get easy top-selling books.
Some are actually good, but I feel like most of them are completely useless. There are some exceptions though. The 48 laws of power seems pretty okay when I read it. “Men’s search for meaning”, if you can qualify it as self help is amazing
I’d much rather people read a lot of good history books, you can usually learn a lot more from them.