This book includes the readings for Year A, Year B and Year C, as well as those for solemnities and feasts of the Lord and the saints during Ordinary Time, in the translation approved for use in the United States. It also includes an index of all the readings and responsorial psalms, a table of the dates of principal feasts from the year 2000 to the year 2025, and a table of the dates of every Sunday in the liturgical year from 2000 to 2013. This is a practical tool for preparing and celebrating Holy Mass.