One client was trying to explain to me the significant change her own health organization needed to go through, and used a visual metaphor to illustrate her point. She said: ‘If we sold books, it’s not like being a WHSmith and trying to become a Waterstones – it’s far more radical than that – we need to become an Amazon.’ Immediately I understood the challenge they faced and, like the previous examples, her illustration was vivid, sticky and got the point across quickly.