This volume gathers, for the first time, Mill's most important writings from across his long career on one of the principal subjects of his life: the nature and reform of representative government. By doing so, it sheds new light on Mill's views about democracy, constitutional structure, parliamentary government, class conflict, the relation between elites and the people, and many other key themes of his political thought. It includes an extensive original Introduction situating Mill's work in the context of the politics of nineteenth-century Britain, and connects his thought to questions that still confront liberal states today.