Rudi Giuliani’s book Leadership has a section on need to getting into the habit of teaching yourself. From an educators point of view he has a great line about having a good understanding of ‘first principles’ as a way to guard against getting ‘dupped’.
Several times during his own book he quotes other texts that influenced him. Including at least 2 books on Winston Churchill. Noteably Churchill A Biography by Roy Jenkins
(Format: Trade Paperback · Published: October 2002ISBN: 0452283523 · Published By: Plume)