Francis of Assisi is, after Mary of Nazareth, the greatest saint in the Christian calendar, and one of the most influential men in the whole of human history. By universal acclaim, this biography by G.K. Chesterton is considered the best appreciation of Francis's life - the one that gets to the heart of the matter. Chesterton gives us Francis in his world - the riotously colorful world of the High Middle Ages, a world with more pageantry and romance than we have seen before or since. Here is the Francis who tried to end the Crusades by talking to the Saracens, and who interceded with the emperor on behalf of the birds. Learn about this saint who turned his world upside down!