Ryan Holiday is an American author, public relations strategist, bookstore owner, and host of the podcast The Daily Stoic. He is a former director of marketing for American Apparel. He went on to found a creative agency called Brass Check, which has advised clients like Google, TASER, and Complex, as well as many prominent bestselling authors, including Neil Strauss, Tony Robbins, and Tim Ferriss.

Ryan is the author of ten books, including The Obstacle Is the Way, Ego Is the Enemy, The Daily Stoic, Conspiracy, and Stillness is the Key which have sold more than 2 million copies in thirty languages and have a following among NFL coaches, world-class athletes, TV personalities, political leaders, and others around the world.