The publication of the first three volumes of Open Marxism in the 1990s has had a transformative impact on how we think about Marxism in the twenty-first century. 'Open Marxism' aims to think of Marxism as a theory of struggle, not as an objective analysis of capitalist domination, arguing that money, capital and the state are forms of struggle from above and therefore open to resistance and rebellion. As critical thought is squeezed out of universities and geographical shifts shape the terrain of theoretical discussion, the editors argue now is the time for a new volume that reflects the work that has been carried out during the past decade. Emphasising the contemporary relevance of 'open Marxism' in our moment of political and economic uncertainty, the collection shines a light on its significance for activists and academics today.