For me, the most striking example of the power and persuasion of storytelling is, itself, a story. Perhaps unsurprisingly, it’s in the form of a TV show: a scene from ABC drama Mad Men. Our hero, 1960s advertising creative director Don Draper, is asked to pitch for business with Kodak who are launching a new piece of kit – a wheel-like storage device for a slide projector. The brief is to communicate how revolutionary and exciting it is. I can’t do his pitch justice here,