“We’ve been creating digital and traditional marketing assets to support client PR programmes for several years as we’ve moved to more integrated campaigns that enable us to deliver deeper business impact. Demand has kept on growing and virtually all our campaigns now include a digital element, so we’ve invested in …

“When writing Berkshire Hathaway’s annual report, I pretend that I’m talking to my sisters. They will understand plain English, but jargon may puzzle them. My goal is simply to give them the information I would wish them to supply to me if our positions were reversed.”