'The principles of justice are chosen behind a veil of ignorance' - John Rawls, A Theory of Justice What is justice? How can we know it? How can we make our society more just? The most significant political philosopher since John Stuart Mill, John Rawls (1921 - 2002) grappled with such dilemmas. His work has been the source not only of academic argument, but also of political debate and legislative reform, arguing that we have a moral duty to organise society so as to rectify undeserved inequality. In the first introduction to Rawls's work which encompasses his entire career, Dr Paul Graham combines lucid exposition with thought-provoking criticism. Locating Rawls in the rich history of political thought, Graham explores a theory that remains fiercely relevant as the developed world sees unprecedented levels of inequality. For anyone concerned with how society works, this is a vital introduction to one of the great modern philosophers and to a subject that is crucial to how we live.