What is it like to make millions before you turn 20? What drives City traders to excess in their quest for extreme wealth? And what happens when they lose it all overnight? This is the first account of life in today's Square Mile, laying bare the tricks, lifestyles and minds of the men who gamble with millions and influence all our lives. It's a thrilling insider story, full of anecdotes and personalities in the style of Liar's Poker and Kitchen Confidential.