Occasionally you stumble on something which feels like the perfect fit between media, audience and subject matter. I spotted this on a saunter through Soho this Christmas.
If you're looking for interesting things, you'll see this face pop up as you walk past the railings.
Then you see the little notice next to it.
Amnesty are great, aren't they? They do so many interesting little things really, really well. They know who they are talking to, and they know exactly how to do it.
Which is great to see.