The Common Catechism

The Common Catechism: A Book of Christian Faith is an ecumenical Christian catechism that is the result of Roman Catholic-Protestant dialogue and work. It was first published in 1973 and is the first joint catechism published by theologians of the Roman Catholic Church, the Lutheran Church, the Reformed Church, among other Protestant traditions, since the Reformation:
The Christian theologians writing the text "trust that their common witness will arouse each individual Christian to a joint testimony of faith in the Christian life." "The Common Catechism" is interdenominational in that it presents "a joint account of the Christian faith" and is regarded as a major fruit of ecumenical commitment.