An Amnesty International street art project is the product of a collaboration between German street art collective Mentalgassi and two creates from W+K London, Lisa Jelliffe and Kirsten Rutherford.
The work highlights six individuals, including Filep Karma and Fatima Hussein Badi, by depicting their faces on lenticular fence posters. The image is only visible from from the sides, but invisible when you look at it head on, along the theme of the campaign.
A plaque on each image lets viewers know of an Amnesty International website where they can help.
The campaign can be seen in 26 locations across 6 European cities.