Parisian Post-it wars

Cecilia found this amazing story on CNN about the so-called “Post-it wars”:

The first shot was fired four months ago, when employees at French computer gaming company Ubisoft… put up a Post-it note image from the 1980s classic Space Invaders on the window.

The bank BNP (Paribas), across the street, then fired back with a Post-it Pac-Man. Since then, Post-it images have been cropping up all over the city; you can see some of the other images at this website.