Small Catechism Author:Martin Luther Luther's Small Catechism was written by Martin Luther and published in 1529 for the training of children. Luther's Small Catechism reviews The Ten Commandments, The Apostles' Creed, The Lord's Prayer, Holy Baptism, The Office of the Keys & Confession, and The Sacrament of the Altar. It is included in the Lutheran Book of Concord as an authoritat... more »ive statement of what Lutherans believe.« less