How has the Liturgy of the Roman rite developed and changed in history before and after the Council of Trent? What principles have determined the boundaries of legitimate liturgical reform over the centuries? What was the Liturgical Movement? Did Guéranger, Beauduin, Guardini, Parsch, Casel, Bugnini, Jungmann, Bouyer and the Movement's other leaders know and respect these principles? And what is to be said of the not insignificant liturgical reforms carried out by Saint Pius X, Popes Pius IX and Pius XII and Blessed John XXIII in the course of the twentieth century? In The Organic Development of the Liturgy, Dom Alcuin Reid examines these questions systematically, incisively and in depth, identifying both the content and context of the principle of "organic development"-a fundamental principle of liturgical reform of the Second Vatican Council's Constitution on the Sacred Liturgy Sacrosanctum Concilium-making a significant contribution to the understanding of the nature of the Liturgical Movement and to the ongoing re-assessment of the reforms enacted following the Council.

Jesus’ saving Paschal work continues today in the liturgy and sacraments. They have the power to sanctify and beatify those who engage the liturgy with proper minds and hearts. In this comprehensive and accessible book, Christopher Carstens opens up the ritual elements mystagogically: that is, he leads participants from what they can sense—a calendar day, a musical instrument, and word—to what is otherwise undetectable: Jesus Christ. He examines the core meaning of each liturgical element in creation, in the culture, in the Old Testament, in Christ, and in heaven. This book is an excellent resource for pastors, seminarians, permanent deacons and deacon candidates, lay ministers, and parish liturgy coordinators.

Sacrosanctum Concilium opened the door to all Christians to understand the contemporary challenge to their life and health, and it started with the reform of the liturgy. In the words of Paul VI the liturgy is the 'first source of life communicated to us, the first school of our spiritual life, the first gift we can give to Christian people by our believing and praying, and the first invitation to the world.' That is surely true for all of us.

Anthony Ruff, O.S.B., has written a brilliant, comprehensive, well-researched book about the treasures of the Church's musical tradition, and about the transformations brought about by liturgical reform. The liturgy constitution Sacrosanctum Concilium stated many revolutionary principles of liturgical reform. Regarding liturgical music, the Council's decrees mandated, on the one hand, the preservation of the inherited treasury of sacred music, and on the other hand, advocated adaptation and expansion of this treasury to meet the changed requirements of the reformed liturgy. In clear, precise language, he retrieves the Council's neglected teachings on the preservation of the inherited music treasury. He clearly shows that this task is not at odds with good pastoral practice, but is rather an integral part of it. The book proposes an alternate hermeneutic for understanding the Second Vatican Council's teachings on worship music.

In True Reform, Massimo Faggioli takes Sacrosanctum Concilium as an interpretive key to the Second Vatican Council. He offers a thorough reflection on the relationship between the liturgical constitution and the whole achievement of Vatican II and argues that the interconnections between the two must emerge if we want to understand the impact of the council on global Catholicism