This final volume in Antonio Negri's new trilogy aims to clarify and develop the "common" as a key concept of radical thought. Here the "common" is understood in a double sense: on the one hand, as a collective of production and consumption in which the domination of capital has been completely realized; on the other hand, as the cooperation of workers and citizens and their assertion of political power. The maturation of this opposition was the sign of the limits of capitalism in our age; the common showed itself as the active force that recomposed production, society and life in a new experience of freedom.