In Gerald Ronson: Leading from the Front, the last of the great British tycoons reveals how he fought his way to the top of the business ladder, lost everything twice, then clawed his way back up again. Amazingly for a man who now holds an iconic status in British business, Ronson quit school before his 15th birthday to work with his father in the family's furniture factory, and as a young boy he and his friends were street fighters, using their fists to take on the British fascist movement. This propelled him into a role as a leader in the cou…