If you read Chris McDougall's BORN TO RUN and enjoyed it, then you'll enjoy Scott Jurek's book as well. A vegan manifesto but also an honest portrait of normal existential travails -- familial dysfunction, marital woes, alienation from a best friend. The book ends with Jurek's account of his positively super-heroic effort at the Greek Spartathlon Ultra Race. Those chapters alone make the book worthwhile reading. Read this book!