Philippe Petit Ties Knots

Philippe Petit, who performed on a wire illegally rigged between the New York World Trade Center’s twin towers on August 7, 1974, talks about how knots have been indispensable throughout his celebrated career. His new book Why Knot? How to Tie More Than Sixty Ingenious, Useful, Beautiful, Lifesaving, Secure Knots! is a guide to tying his essential knots.