Raquel Varela is a Portuguese labour historian, researcher, and professor at New University of Lisbon, and Honorary Fellow at the International Institute for Social History. She is President of the Observatory of Labour and Living Conditions and a member of the executive board of the International Association of Strikes and Social Conflicts and co-editor of its journal. She is the author of A People's History of the Portuguese Revolution , A People's History of Europe , and the graphic novel Utopia , with Robson Villalba. Roberto della Santa is a Brazilian professor, social scientist, and researcher at the Center for Global Studies of the Universidade Aberta de Lisboa, and Co-Coordinator at the Observatory for Living and Working Conditions. For the 50th anniversary of the Portuguese Revolution, he co-wrote with the Kairós Collective a series of five historical documentaries on the World of Work for RTP2 public television. Michael Roberts has worked in the City of London for over 30 years as an economist and financial adviser. He is author of several books including The Great Recession , The Long Depression and Marx 200 . He blogs at thenextrecession.

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