This is the first full-length presentation of a republican alternative to the liberal and communitarian theories that have dominated political philosophy in recent years. Professor Pettit's eloquent and compelling account opens with an examination of the traditional republican conception of freedom as non-domination, contrasting this with established negative and positive views of liberty. The first part of the book traces the rise and decline of this conception, displays its many attractions and makes a case for why it should still be regarded as a central political ideal. The second part of the book looks at what the implementation of the ideal would imply for substantive policy-making, constitutional and democratic design, regulatory control and the relation between state and civil society.