British billionaire and art collector Joe Lewis made his fortune in currency trading and went on to own the Tottenham Hotspur football club and a string of other enterprises. He purportedly approaches collecting with the same selectivity and market focus as he approached business, while also finding inspiration in his early encounters with art. “Lewis grew up amid the creative ferment of post-war London, the city of Bacon, Freud and Kossoff, whe…