Years ago I worked at Dorling Kindersley producing illustrated four-colour books - that is to say, with pictures on every page, and the text often wrapped around the pictures. Whatever the subject, cookery, health and wellbeing, or DIY, Dorling Kindersley’s working methods were the same. Designers and editors sat at desks facing each other. To communicate or to explain a concept, the designer would create a quick pencil rough, and the editor would comment on it. Or the editor would explain his or her idea and the designer would visualise it. Some of the ideas inevitably led nowhere.