Participation in the Mass is the one experience that all active Catholics share. The articles collected in Celebrating Good Liturgy, derived from a popular series in America magazine, show how the church’s central act of worship can be a richer experience for everyone. The essays, written by the most accomplished liturgists in the country, examine the “roles” of all the people involved in the Mass—the congregation, presider, deacons, lectors, musicians, eucharistic ministers, and ministers of hospitality.