The humble act of putting one foot in front of the other transcends age, geography, culture and class, and is one of the most economical and environmentally responsible modes of transit. Yet with our modern fixation on speed, this healthy pedestrian activity has been largely left behind. At a personal and professional crossroads, writer, editor and obsessive walker Dan Rubinstein travelled throughout the UK, the US and Canada to walk with people who saw the act not only as a form of transportation and recreation, but also as a path to a better world.