Running isn't a hobby, it's a way of life. Runners run to be the best they can be, to challenge who they are, to inspire others and to champion their cause. From the woman who ran for three and a half days without sleep, to the 61-year-old man who broke records in an 875-km ultramarathon, this collection of unforgettable stories will inspire anyone who's ever pounded the pavement to keep on running and enjoy every minute of this liberating sport.