The Legal Theory Bookworm recommends The Legal Foundations of Religious Freedom: Human Rights in the United States and Europe by John Witte Jr & Andrea Pin, Here is a description:
The Legal Foundations of Religious Freedom documents the essential interdependence of human rights and religious freedom in the West, from antiquity to the present.
In The Legal Foundations of Religious Freedom, authors John Witte Jr. and Andrea Pin explore the Christian and secular origins of rights in the Western legal tradition and the complex interplay between human rights and religious freedom norms in modern law, religion, and culture. They analyze historical documents and recent cases from the United States Supreme Court, the European Court of Human Rights, and the Court of Justice of the European Union to articulate the historical, theoretical, and legal tension of human rights and religious freedom on both sides of the Atlantic. The authors contrast the serious threats to new religious minorities and traditional religious accommodations with firm new protections of religious freedoms in both Europe and America.
Ultimately calling for robust protection of the fundamental rights and liberties of all people and faiths, Witte and Pin caution that religious freedom and other human rights claims can only do so much to bridge the widening cultural divides over law and religion in modern Western societies. It is our responsibility to embrace the fundamental goods of dignity, fraternity, and justice.
And from the reviews:
“The ideal entry point for anyone wanting to gain a general and authoritative understanding of the history and development of religious liberty in Europe and the United States from its origins to the latest judicial developments.” ―Paolo G. Carozza, co-author of Regional Protection of Human Rights
“Adroit and penetrating, these renowned masters in their field have confected a long-overdue and readily accessible text that is authoritative as well as challenging for scholars, practitioners, and judges.” ―Mark Hill KC, Global Distinguished Professor of Law, Notre Dame London
“Written by two of the most distinguished scholars in the field of law and religion today, this book provides a robust, reasoned, and reflective defence of the connection of human rights to religious freedom. Crystal-clear, richly evidenced, and thought-provoking, the book is superb: essential for students of law and religion.” ―Norman Doe, professor of law, Cardiff University, Bencher of the Inner Temple, Chancellor of the Diocese of Bangor, and Fellow of the British Academy