1.Introduction.- 2.The Limits to Anti-Value: David Harvey.- 3.Marx’s Grundrisse, and Labour as ‘Not-Capital’: Roman Rosdolsky, Antonio Negri, Mario Tronti.- 4.Systematic Dialectic of the Value-Form: Christopher Arthur.- 5.The ‘Critique of Labour’: Moishe Postone, Wertkritik, John Holloway.- 6.‘The Critique of Political Economy as Critical Social Theory’.- 7.Conclusion: The Limits to Not-Capital.