[pcprincipal]

Worth noting that Nassim Nicholas Taleb has some interesting explanations about why practitioners write better and more accurate books than journalists in "Skin in the Game". As you probably guessed from the title, practitioners have a lot to lose by writing a bad book about their practice because it impacts their livelihood. Journalists - while they do face some consequences for bad books - don't pay the same price, and are more likely appealing to a general audience when they write a non-fiction book.