In contrast to the traditional view that Marx's work is restricted to a critique of capitalism and does not contain a detailed or coherent conception of its alternative, this book shows, through an analysis of his published and unpublished writings, that Marx was committed to a specific concept of a post-capitalist society that informed his critique of value production, alienated labor and capitalist accumulation. Instead of focusing on the present with only a passing reference to the future, Marx's emphasis on capitalism's tendency towards dissolution is rooted in a specific conception of what should replace it. In critically re-examining that conception, this book addresses the quest for an alternative to capitalism that has taken on increased importance today.