Hi folks,
Agree with Grendel3, Plimsolls on Eyeballs Out is a brilliant read about Jim Peters, as is Rob Hadgraft's other book Arthur Nerwton, Tea With Mr Newton. Last To First by Spedding is great and in the index page there's extracts of his training leading up to ther Olympic marathon, worth the price of the book on its own. There was a book out not long ago about Gordon Pirie, The Impossible Hero which was good.
Lore Of Running is a classic, if not heavy read, but it covers all you'd want to know and more.