There are 56,956 personal finance books on Amazon.com. In aggregate, they contain more than 3 billion words.
This seems absurd, because 99% of personal finance can be summarized in nine words: Work a lot, spend a little, invest the difference. Master that, and the other 2.999 billion words are filler.
The most important finance topics don’t require details. Most can be, and should be, summarized in a sentence or two.