"He prefers to read books written by people that have actual experience doing something, rather than theoretical extrapolations" i also find that books written

"He prefers to read books written by people that have actual experience doing something, rather than theoretical extrapolations" i also find that books written from author's experience superior examples: pg's essays, htgr by felix dennis, ferris among others actually pretty much everything else (author who sings own song, cook who eats own food, etc)