H.A. Reinhold s mission to pastorally implement the liturgical changes brought about by the Second Vatican Council remains every bit the challenge it was during the time of his death over forty years ago. As cries for social justice resound, liturgy more than ever must be the tie of relevance that binds the church to the world. It is this essential link between liturgy and social justice that Julia Upton discovered in Reinhold and that she wonderfully retrieves in tracing his life and legacy in Worship in Spirit and Truth. In doing so, she takes up Reinhold s prophetic mantle and inspires us to do so as well.