Primary source
Titan: The Life of John D. Rockefeller, Sr.
Biography by Ron Chernow · 1998 · grounds John D. Rockefeller
Overview
The definitive 800-page biography. The source of every framework we attribute to Rockefeller: Ledger A, the Cleveland Massacre, the dimes, the systematic philanthropy.
A full write-up of this book has not been published yet.
Skills drawn from this book
Installable Claude Code skills grounded in this text. Each one teaches a framework the book actually argues for.