he aim of the new design was to create a uniform appearance for all Berlin administrations and their subordinate authorities in order to improve recognition and strengthen their external image.
The Berlin campaign got its unmistakable profile from the typeface Change, which was developed in 2008 and designed by Alessio Leonardi. The eye-catching slab serif carried the advertising messages in the first phase of the campaign and became a set piece for all Berliners, who wrote three-line declarations of love for their city in the Be Berlin bubble.
The Governing Mayor Klaus Wowereit wanted to use the campaign typography across the city’s communication and this led to the development of the more neutral Change Sans subfamily. The original typewriter-style font was given the name “Change Letter”. Change Sans was optimized for longer texts and small print, with proportional widths, simpler letters, narrow running and a slightly lighter base cut to enhance the contrast between Regular and Bold.