This is my issue as well, not just with business books, but self-help in general. Many have a premise that might be helpful or at least interesting. But almost none of them require more than a blog post to fully explore. The expansion to a full book length is almost never worth it and is solely for the author to monetize the idea.
The entire broad genre of self-help + business has a reputation for being scam-adjacent for a reason. It’s pretty much all junk. Even the ones people say are “good” (people keep writing them because they can sell, which means some become popular, which are the “good” ones, but usually they aren’t good)
Some of them do have a page worth of valuable content; some have a page worth of misleading content that is worse than nothing; and most don't have any content.
The first set is supposed to be the "good" ones, but a lot of people will add books from the second set there too.
