Margaret Calvert (b1936) working with Jock Kinneir (1917-94) transformed the previously haphazard state of British road signs in the late 1950s by creating a system and typeface which became the role model for modern road signage all over the world (this example is from 1958). As Margaret Howell says, their signs "are so familiar that no one notices how clever they really are. They convey important information quickly, unambiguously and without distraction to motorists travelling at speed...They look as good today as they did 50 years ago and have made motorway travelling safer and easier for millions".