Book excerpt: Ultra running is one of the world's fastest growing sports and in Ian Corless who runs the scene's most influential podcast, ultra-running has the perfect author to chronicle its rise. Running Beyond is a homage to the sport's legendary races, unique, commissioned photography, captures the diverse and striking terrain - from mountail peaks, to jungles and deserts. Through interviews with the legendary athletes of the sport, Running Beyond is the ultimate homage to the ultra-running world. Foreword by record-breaking, world number one, Kilian Jornet (Run or Die).