" Amnesty International, in collaboration with the German street art collectiveMentalgassi, and Wieden + Kennedy creative team Lisa Jelliffe and Kirsten Rutherford have produced a creative way to highlight the cases from this year’sLetter Writing Marathon.

The street art, which appears on 25 fences around the world, is not immediately visible. The faces only appear from a certain angle, giving our campaign line‘making the invisible visible’ meaning when the image suddenly comes into view.

The campaign features the faces of individuals whose human rights have been denied or abused. You have the power to write a letter that could change their lives. Take action now."

Danke Amnesty.