Off the wall: the enduring impact of the printed poster

The visual history of protest – and promotion – would be nothing without ink and paper A t New York’s recently opened Poster House museum, three exhibits sum up the poster’s impact on life and culture. At one end is an ad by Raymond Savignac for French soap brand Monsavon. In the gallery next to it are hand-painted Ghanaian film posters – a rich tradition sadly falling victim to the lurid charms of digital printing. Downstairs is a display from the Women’s Mar