Forms of contamination, whether environmental, political, technocratic or technological, are the central theme of the fifth edition of Arts of the Working Class, entitled UNCHAIN CHANGE. The solutions and deviations around these issues point to what overwhelms us and controls us: the capitalist dream of the future. It is borne of a problematic past that feeds the behavioral patterns developed around the neoliberal machinery, that are now responsible for the destruction of our natural heritage. The tropist vision of our contributors generates kaleidoscopes and exchanges warm commitments of an unusual order.