In 2023, a collection of 38 letters from J.D. Rockefeller to his son was published. These letters spanned over four decades and were not previously widely available. Contained in the 194 pages is a treasure trove of wisdom relating to a broad range of topics. However, for this episode, the focus was on Rockefeller's advice that is helpful from an investing perspective. Be sure to obtain a copy of the book to gain access to the inner workings of his mind. A word of appreciation is owed to Open Stax Textbooks for making these invaluable writings available to the public.