Highlights of the seventh volume of Signal include:

Philadelphia Printworks: Maryam Pugh discusses the legacy and future of Black political art with John Morrison

The Vinyl Records of Victor Jara: The world-wide impact of the nueva canción bard documented by Josh MacPhee

Spectacular Commodities: Mehdi el Hajoui explores the objects of the Situationist International

The Left Independistas: A fifty year retrospective of the graphics of the Catalan independence movement by Jordi Padró

Dario and Maxi: Natalia Revale documents the transformation of a Buenos Aires metro station

We Will Break Open the Doors That Obscure the Sun: Erik Buelinckx uncovers the graphic work of the anarchist Belgian Expressionist Albert Daenens

Giving Voice to the Voiceless: Bill Berkowitz interviews California printer and poster maker Malaquías Montoya