The "All Night Vigil" held in parish churches on a Saturday evening, is one of the best-known features of the Russian Orthodox Church. This English translation is intended both to help the worshipper to follow the service at the Vigil for Sunday held on Saturday night and to assist the choir in chanting the service. It contains the unvarying texts and rubrics regarding the insertion of the variable parts. The parts of the priest, deacon, reader and choir are clearly indicated. AUTHOR: The monks who came to Holy Trinity Monastery from Eastern Europe after World War II inherited a tradition of printing that stretches back almost to the invention of the printing press in the fifteenth century. Through the fathers' tireless efforts, the monastery has been printing and publishing Orthodox Christian books for almost sixty-five years. In keeping with the humble spirit required of a monk, books which are written or prepared by members of the monastic brotherhood are published under the general authorship of Holy Trinity Monastery.