Book excerpt: Written with special attention to Early Church, Reformation, and present day traditions, in Christian Liturgy Senn traces the story of Christian liturgy in light of the church's public rites. Senn's study focuses on liturgical practices that are catholic -- in continuity with the whole historic tradition -- and evangelical -- Gospel-centered in its forms of proclamation and celebration. Exploring the liturgy from an ecumenical perspective and context, the author uses a comparative studies approach to the liturgy, drawing on the insights of anthropology, biblical studies, general history, church history, historical theology, and musicology.