Three thousand years ago on a battlefield in ancient Palestine, a shepherd boy felled a mighty warrior with nothing more than a stone and a sling, and ever since then the names of David and Goliath have stood for battles between underdogs and giants. David's victory was improbable and miraculous. He shouldn't have won. http://www.amazon.com/David-Goliath-Underdogs-Misfits-Battling/dp/0316204366/ref=sr_1_1?ie=UTF8&qid=1376880608&sr=8-1&keywords=David+and+Goliath