This text contains the revised translation that goes into effect during Advent of 2011. The missal will ship at the beginning of October, 2011. This handy-size, PERPETUAL, Weekday Missal contains all the Weekday Masses with their options. The arrangement follows the liturgical year, and Volume I is for Weekdays only from Advent to Pentecost for both Year I and Year II. Volume II covers Pentecost to Advent.