Silvia Federici is a long-time feminist, writer, and teacher living in Brooklyn, NY. Her most recent book is Revolution at Point Zero: Housework, Reproduction, and Feminist Struggle (Common Notions/PM Press, 2012). Born in Italy, Federici has lectured and taught widely in Europe, Latin America, Africa, and the U.S. She has participated in numerous international movements and social struggles, including feminist, education, anti-death penalty, as well as anti-nuclear and anti-globalization movements.

George Caffentzis is a political philosopher and autonomist Marxist. He is a Professor of Philosophy at the University of Southern Maine and a founding member of the Midnight Notes Collective. His most recent book is In Letters of Blood and Fire: Work, Machines, and the Crisis of Capitalism (PM Press/ Common Notions, 2013)

Selma James is a women’s rights and anti-racist campaigner and author. From 1958 to 1962 she worked with C.L.R. James in the movement for West Indian federation and independence. In Padova 1972, she helped co-found the International Wages for Housework Campaign with a number of women whoformed the International Feminist Collective, and in 2000 helped launch the Global Women’s Strike whose strategy for change is “Invest in Caring not Killing”. Her most recent book is Sex, Race, and Class—The Perspective of Winning: A Selection of Writings 1952–2011 (Common Notions/PM Press, 2012).

Strike Debt emerged out of assemblies held in May 2012 in solidarity with the student strikes in Montreal. Working groups such as Occupy Theory, Occupy Student Debt Campaign, and Free University collaborated to hold an assembly on Education and Debt. Several weeks later, the group continued to meet under the name “Strike Debt,” which quickly realized that organizing around all forms of debt provided much-needed energy and systematic analysis to the movement. The Debt Resisters’ Operations Manual is a project of Strike Debt, which is building a movement of debt resistance and liberation based on principles of anti-oppression, autonomy, democratic decision-making, and direct action.

Colectivo Situaciones is a collective of militant researchers based in Buenos Aires. They have participated in numerous grassroots co-research activities with unemployed workers, peasant movements, neighborhood assemblies, and alternative education experiments. Their most recent book is 19 & 20: Notes for a New Social Protagonism (Common Notions / Autonomedia, 2011).