Signal is an ongoing book series dedicated to documenting and sharing compelling graphics, art projects, and cultural movements of international resistance and liberation struggles. Artists and cultural workers have been at the center of upheavals and revolts the world over, from the painters and poets in the Paris Commune to the poster-makers and street-theatre performers of the Occupy movement. Signal brings these artists and their work to a new audience, digging deep through our common history to unearth their images and stories. Within its pages you will find political posters and fine arts, comics and murals, street art, site-specific works, zines, art collectives, documentation of performances, and articles on the often-overlooked but essential roles all of these have played in struggles around the world.