The Legal Theory Bookworm recommends The Idea of Justice by Professor Amartya Sen. Here is a description:
Social justice: an ideal, forever beyond our grasp; or one of many practical possibilities? More than a matter of intellectual discourse, the idea of justice plays a real role in how—and how well—people live. And in this book the distinguished scholar Amartya Sen offers a powerful critique of the theory of social justice that, in its grip on social and political thinking, has long left practical realities far behind.
The transcendental theory of justice, the subject of Sen’s analysis, flourished in the Enlightenment and has proponents among some of the most distinguished philosophers of our day; it is concerned with identifying perfectly just social arrangements, defining the nature of the perfectly just society. The approach Sen favors, on the other hand, focuses on the comparative judgments of what is “more” or “less” just, and on the comparative merits of the different societies that actually emerge from certain institutions and social interactions.
At the heart of Sen’s argument is a respect for reasoned differences in our understanding of what a “just society” really is. People of different persuasions—for example, utilitarians, economic egalitarians, labor right theorists, no-nonsense libertarians—might each reasonably see a clear and straightforward resolution to questions of justice; and yet, these clear and straightforward resolutions would be completely different. In light of this, Sen argues for a comparative perspective on justice that can guide us in the choice between alternatives that we inevitably face.
And from the reviews:
The most important contribution to the subject since John Rawls' A Theory of Justice. Sen argues that what we urgently need in our troubled world is not a theory of an ideally just state, but a theory that can yield judgments as to comparative justice, judgments that tell us when and why we are moving closer to or farther away from realizing justice in the present globalized world.--Hilary Putnam, Harvard University
In lucid and vigorous prose, The Idea of Justice gives us a political philosophy that is dedicated to the reduction of injustice on Earth rather than to the creation of ideally just castles in the air. Amartya Sen brings political philosophy face to face with human aspiration and human deprivation in the real world, to whose improvement he has devoted his intellectual life.--G. A. Cohen, University of Oxford
A major critical analysis and synthesis. Sen's inclusive approach transcends the many important scholars and viewpoints that he analyzes. The Idea of Justice presents a set of considerations on justice of importance to both the academic community and to the world of policy formation.--Kenneth Arrow, Nobel Laureate in Economics, Stanford University
Few contemporary thinkers have had as much direct impact on world affairs as Amartya Sen--Philippe Van Parijs, Louvain University
In the courtliest of tones, Mr. Sen charges John Rawls, an American philosopher who died in 2002, with sending political thinkers up a tortuous blind alley. The Rawlsian project of trying to describe ideally just institutions is a distracting and ultimately fruitless way to think about social injustice, Mr. Sen complains. Such a spirited attack against possibly the most influential English-speaking political philosopher of the past 100 years will alone excite attention. The Idea of Justice serves also as a commanding summation of Mr. Sen's own work on economic reasoning and on the elements and measurement of human well-being...Mr. Sen writes with dry wit, a feel for history and a relaxed cosmopolitanism...The Idea of Justice is a feast...Nobody can reasonably complain any longer that they do not see how the parts of Mr. Sen's grand enterprise fit together...Mr. Sen ends, suitably, with democracy. It can take many institutional forms, he says. But none succeeds without open debate about values and principles. To that vital element in public reason, as he calls it, The Idea of Justice is a contribution of the highest rank. (The Economist )
Essential reading for anyone with an interest in political philosophy or normative legal theory. My very highest recommendation. Buy this book!