John Connell's award-winning memoir The Cow Book was a number one bestseller in Ireland.
He takes us back to his native Longford for his latest book, The Running Book, which he describes as a story of "living life and finding happiness through your feet."
It follows John as he sets off on a marathon run of 42.2 kilometres through Longford, reflecting on a wide range of subjects along the way.
He joined us on The Last Word to talk about why running is good for both the body and the mind and how it can help you see the world in a different way.