Operation Mincemeat is a tale of courage against the odds – and that goes for the hit musical’s poster, too. “It’s a brave producer who will go with just a graphic,” says its designer, Bob King. Luckily Avalon was that producer, “brave enough to go with probably the smallest title treatment in the West End”. Against a sea of jaunty, hazard-warning yellow, the poster features an energetic black scribble in the top right while the title is small and tight in the middle. Look again and you’re staring at a sketch of Hitler’s fringe and moustache. The name of the...