NON is a work in book form by visual artist Paulien Oltheten, inspired by a graffito found in the Les Olympiades area (13th arrondisement) in Paris. The book consists of a photo series and an audio transcript in which random passers-by give new meanings to the word 'non' (no). It playfully explores what happens when this compact statement is taken from a concrete wall to travel freely between the social and the political.