C.L.R. James is one of the leading Marxist interpreters of colonialism and anti-colonial struggle in the twentieth century. Famous for his literary and cultural, as well as theoretical, writings, his thinking engaged with a vast range of issues including civil rights, race, class, socialism, cricket and cultural production. Notes on Dialectics, first published in 1948, is his key theoretical work. It is one of the most complex and original Marxist documents ever to come out of the United States, where C.L.R. James lived for fifteen years. It provides a thorough re-examination of the Hegelian foundations of Marxist theory and a new interpretation of the history of the labour movement through a close engagement with Hegel's Logic. To this day, the book represents a brilliant example of a living, productive engagement with Marxist theory and politics. This new edition, with a new introduction from leading C.L.R. James scholar, ensures that this classic book will continue to reach a new generation of scholars and students of Marxist theory as well as activists.