this image really caught my eye. it's amazing how powerful a message it conveys with so little. and i appreciate that you have to look at it for a minute before you see all of the layers in the design. did you realize he was giving the middle finger (f*$k landmines) at first?
this poster is by colombian designer victor manuel barrera and one of 122 posters featured in a recent graphic advocacy exhibition. there are lots of interesting pieces in there (so take a look!) but i thought this was the most powerful - and the smartest - one.