Starrett is the author of three books on fitness and mobility. Before writing full-length books, Starrett contributed articles to the Crossfit Journal, focusing on the basics of posture and gait. He has continued in this vein with his first book, The Supple Leopard (2013), which highlights basic mechanics and range of motion. The Supple Leopard was generally well received, making the New York Times bestselling Sports books list, though it did receive criticism for being "a trial and error method rather than a system of standard operating procedures to diagnose and fix movement."