For 25 years, Napoleon Hill researched and interviewed the world’s most wealthy people on the planet. This inspiration was for a book called Think and Grow Rich, which details the 13 secrets to success. 200M copies later, Think and Grow Rich has become the most impactful personal development book in history. Helping shape the lives and success of some of the biggest thought leaders and icons including Elon Musk, Andrew Carnegie, Thomas Edison, Alexander Graham Bell, Henry Ford, and many more...