From The Greats
Charles Koch lists Personal Knowledge among his top four favorite reads.
Recommended · Wording not verified
Source: CharlesKoch.com
Evidence details
Principled LeaderThe official page says these top four favorite reads are books where Koch learned how the world works, and the Personal Knowledge card describes its profound influence on his business.
This text documents what the source says, but it is not verified as a word-for-word quote.
CharlesKoch.com · 2026 · accessed 2026-06-22
Article · Official favorite-reads page
The official Charles Koch page labels the section "Charles' Top Four Favorite Reads" and says these books are where he learned how the world works; the row text is a catalog summary rather than a verbatim quote.