Antonio Negri is an Italian philosopher and political activist known for his work in Marxist theory and post-structuralism. He gained prominence in the 1970s with his writings on labor, capitalism, and the role of the state. Negri is often associated with the Autonomia movement, which sought to challenge traditional forms of political organization and promote grassroots activism. One of his most influential works is Empire, co-authored with Michael Hardt, which explores the dynamics of global capitalism and the emergence of a new form of sovereignty. Negri's ideas have inspired various social movements and continue to be relevant in discussions about democracy, labor rights, and resistance against neoliberalism.