On August 7, 1974, Philippe Petit stepped out on a wire illegally rigged between the New York World Trade Center's twin towers, where he performed for nearly an hour. During this history-making walk, and many others throughout his celebrated career, knots have always been indispensable components--the guardian angels protecting his life in the sky. After years of hands-on research, Philippe presents a guide to tying his essential knots. Philippe's...