Peter Walker

Peter Walker is a political correspondent with the Guardian, and a commentator and frequent broadcaster on issues including politics, active living and health.  He has written a previous book about the many benefits of everyday cycling, Bike Nation: How Cycling Can Save the World, which is how he became fascinated by the problem of inactive lifestyles. As a journalist he has reported from countries including North Korea, China and Iraq, and is now based in parliament. @peterwalker99