Ryan Holiday is a strategist and writer. He dropped out of college at nineteen to apprentice under Robert Greene, author of The 48 Laws of Power, and later served as the director of marketing for American Apparel. His company, Brass Check, has advised clients like Google, TASER and Complex, as well as many prominent bestselling authors. Holiday is bestselling author of Growth Hacker Marketing, The Obstacle is the Way and Ego is the Enemy. His books have been translated into 25 languages and his writing has appeared everywhere from the Columbia Journalism Review to Fast Company. He lives on a small ranch outside Austin, Texas.