The Roman Missal is a liturgical book used in the Roman Catholic Church that contains the texts and prayers for the celebration of the Mass. It provides the structure and guidelines for the various parts of the service, including the readings, prayers, and rituals. The missal is essential for priests and deacons as they lead the congregation in worship. The Roman Missal has undergone several revisions, with the most recent edition being published in 2011. It is part of the broader tradition of the Roman Rite, which is one of the main liturgical rites of the Catholic Church. The missal helps ensure consistency and unity in the celebration of the Eucharist across different parishes and communities.