I used to buy books personal development, management and productivity books and a very sad transition in that space in the last 15 years is that most of the time the author needs to used a lot of anecdotes and make a narrative instead to do directly do the point.
I used to call that as a "Talebnization" of business/management writing that everyone uses more or less the same format to convey a idea:
- Some random quote to support the point
- 1 paragraph with the point
- 1 or 2 anecdotes or researched case about the point
- Some broad cherry-picked statistic to bring some rigor
- A success case due to the point
- Closing thoughts without any counterpoint, critique, or presence of any downside in the main point of the chapter.
Do that for 20 chapters and you have a book.