The ongoing debates on the present state and the future of the Roman Catholic worship are not confined to specialists, but are clearly of interest to a wider public, as the responses to the Sacra Liturgia UK conference, held in London in July 2017, have shown. This volume contains the proceedings of the conference and raises the question of how to bring to fruition the insights and instructions of the Second Vatican Council and its key document on the liturgy, Sacrosanctum Concilium, in the life of the Church today. The initial contribution from Robert Cardinal Sarah, Prefect of the Congregation for Divine Worship and the Sacraments, calls for a fuller implementation of Sacrosanctum Concilium. Following on from this other leading figures and liturgical scholars, such as Joris Geldhof, David Fagerberg and Alcuin Reid, examine Catholic worship from a variety of perspectives, including historical, pastoral, social, cultural and artistic themes. Taken together, these chapters present another crucial step along the route of authentic liturgical renewal in the contemporary world.