New York Times best-selling author Kevin Kruse presents the remarkable findings of his study of ultraproductive people. Based on survey research and interviews with billionaires, Olympic athletes, straight-A students, and over 200 entrepreneurs - including Mark Cuban, Kevin Harrington, James Altucher, John Lee Dumas, Pat Flynn, Grant Cardone, and Lewis Howes - Kruse answers the question: What are the secrets to extreme productivity?
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