Theories of social justice are necessarily abstract, reaching beyond the particular and the immediate to the general and the timeless. Yet such theories, addressing the world and its problems, must respond to the real and changing dilemmas of the day. A brilliant work of practical philosophy, Frontiers of Justice is dedicated to this proposition. Taking up three urgent problems of social justice neglected by current theories and thus harder to tackle in practical terms and everyday life, Martha Nussbaum seeks a theory of social justice that can guide us to a richer, more responsive approach to social cooperation.

The idea of the social contract--especially as developed in the work of John Rawls--is one of the most powerful approaches to social justice in the Western tradition. But as Nussbaum demonstrates, even Rawls's theory, suggesting a contract for mutual advantage among approximate equals, cannot address questions of social justice posed by unequal parties. How, for instance, can we extend the equal rights of citizenship--education, health care, political rights and liberties--to those with physical and mental disabilities? How can we extend justice and dignified life conditions to all citizens of the world? And how, finally, can we bring our treatment of nonhuman animals into our notions of social justice? Exploring the limitations of the social contract in these three areas, Nussbaum devises an alternative theory based on the idea of "capabilities." She helps us to think more clearly about the purposes of political cooperation and the nature of political principles--and to look to a future of greater justice for all.

The most exciting development in legal thinking since World War II has been the growth of interdisciplinary legal studies—the application of the social sciences and the humanities to law in the hope of making law less formalistic, more practical, better grounded empirically, bettered tailored to social goals. Judge Richard A. Posner has been a leader in this movement, and his new book explores its rapidly expanding frontier.

The book examines five principal areas or directions of interdisciplinary study: economics, history, psychology, the epistemology of law and the empirical study of law. These approaches are seen to interpenetrate and to compose a coherent body of legal theory—a unified framework for understanding such seemingly disparate phenomena as the economics of free speech, the intellectual history of economic analysis of law, the relation between income and liberty, the law of possession, the psychology of legal decisionmaking, the role of emotion in law, and the use of citation analysis to evaluate judges and law professors. The book carries on Posner’s project of analyzing the law as an institution of social governance.

Frontiers of Possession asks how territorial borders were established in Europe and the Americas during the early modern period and challenges the standard view that national boundaries are largely determined by military conflicts and treaties. Focusing on Spanish and Portuguese claims in the New and Old Worlds, Tamar Herzog reconstructs the different ways land rights were negotiated and enforced, sometimes violently, among people who remembered old possessions or envisioned new ones: farmers and nobles, clergymen and missionaries, settlers and indigenous peoples.

Questioning the habitual narrative that sees the Americas as a logical extension of the Old World, Herzog portrays Spain and Portugal on both sides of the Atlantic as one unified imperial space. She begins in the Americas, where Iberian conquerors had to decide who could settle the land, who could harvest fruit and cut timber, and who had river rights for travel and trade. The presence of indigenous peoples as enemies to vanquish or allies to befriend, along with the vastness of the land, complicated the picture, as did the promise of unlimited wealth. In Europe, meanwhile, the formation and re-formation of boundaries could last centuries, as ancient entitlements clashed with evolving economic conditions and changing political views and juridical doctrines regarding how land could be acquired and maintained.

Herzog demonstrates that the same fundamental questions had to be addressed in Europe and in the Americas. Territorial control was always subject to negotiation, as neighbors and outsiders, in their quotidian interactions, carved out and defended new frontiers of possession.

Lisa Steinberg. Elisa Izquierdo. Lance Helms. These are just a few of the names drawn from recent headlines, revealing cases of horrendous child abuse and neglect. Such cases have led to a crisis of confidence in the current child protective services (CPS) system, and to frequent calls for reform.

The public is right to be concerned, shows Jane Waldfogel, but many perceptions of the CPS system and the problems it is designed to alleviate are inaccurate. This book goes beyond the headlines, using historical, comparative, and specific case data to formulate a new approach to protecting children.

Currently, Waldfogel argues, the CPS system is overwhelmed by referrals. As a result, neither high-risk nor low-risk families are adequately served.

Waldfogel examines the underlying assumptions of CPS, compares the U.S. record with those of Britain, Canada, and Australia, and offers a "new paradigm" in which CPS joins with other public and private partners to provide a differential response to the broad range of children in need of protection. She highlights reforms underway in several states and in Britain.

This book's analytical clarity and straightforward policy recommendations will make it mandatory reading for policymakers, practitioners, and others interested in the future of child protection.