Clare V. Johnson is Professor of Liturgical Studies and Sacramental Theology, and Director of the ACU Centre for Liturgy, Australian Catholic University. She has taught liturgy and sacramental theology at Notre Dame USA, University of Notre Dame Australia, and ACU. She has published widely in liturgy and sacramental theology, and directs the ACU Centre for Liturgy’s academic, formation, and professional development programs for Catholic dioceses, schools, agencies, and parishes throughout Australia. Gerard Moore is Professor of Liturgical Studies, Principal and CEO BBI-The Australian Institute of Theological Education, Pennant Hills, NSW Australia. He has taught widely in liturgy and sacramental theology and published extensively in worship, liturgical spirituality, and social justice. He has served as Head of School of Theology at Charles Sturt University and lecturer and Director (Research) within the Sydney College of Divinity. Peter G. Williams AM is Vicar General and Moderator of the Curia, Diocese of Parramatta, New South Wales, Australia. He served for eleven years as Executive Secretary of the Bishops commission for Liturgy for the Australian Catholic Bishops Conference. He was Director of Liturgy for World Youth Day in Sydney 2008 and was Chair of the editorial committee for Australia’s Catholic Worship Book II. He teaches liturgy at the Catholic Institute of Sydney.