Organisation psychologist Adam Grant is a top rated professor at the University of Pennsylvania, and a leading expert on motivation and meaning.
He is the host of a popular podcast and has presented TED talks that have been watched over 11 million times, and is a three time New York Times bestseller. Fortune's 40 under 40 recognised him as one of the most influential management thinkers in the world, and he is a member of the Lean In board as well as the Defense Innovation Board at the Pentagon.