Tools of Titans: A Complete Summary Welcome to Tools of Titans: The Tactics, Routines, and Habits of Billionaires, Icons, and World-Class Performers, a book written by Timothy Ferriss. One of the most notable things about this book is the "50-25-10" formula the author uses to explain the keys to success. The author hopes that his readers will "love" 50% of his book, "like" 25%, and remember 10% of it. Tools of Titans is self-help literature that promises...