Outstanding reference work for anyone interested in studying and understanding the key documents of modern Catholic social teaching. (The "modern" period begins in 1891, when Pope Leo XIII wrote "Rerum Novarum," a formal letter, known as an encyclical, on the condition of workers.) Part One includes four essays to provide a context for Catholic social teaching; Part Two includes fourteen commentaries on major documents; and Part Three, with three essays, focuses on broad themes, including the future of Catholic social teaching. The commentaries are the meat of the book, and they reflect a simple framework that will appeal in particular to non-specialists: an intro; an outline; the ecclesial and social context; authorship and process of formulation; the primary essay; reactions to the document; an excursus; and a select, annotated bibliography. All of the contributors represent progressive Catholicism in the United States, that is, scholars within the tradition committed to the ongoing renewal of the church in the spirit of Vatican II.