Sixty years ago a generation of gifted Europeans had to recreate their lives in the United States, having been driven abroad by Hitler. Peter Drucker was one of them. His sense of “otherness” endowed him, like so many of his fellow émigrés, with a sense of detachment and a critical eye: “Neither actor nor member of the audience,” he writes in his 1978 memoir, Adventures of a Bystander. Through intuition, common sense and a lifetime spent in asking questions (“My greatest strength as a consultant is to be ignorant and ask a few questions”), Drucker found simple solutions to complex problems. Turning his attention to the marketplace, he transformed it into a more ideal working environment. He became one of the most influential management thinkers of the 20th century.