God Father and Creator: Catechesis on the Creed, part I (1985–1986)
Jesus Son and Savior: Catechesis on the Creed, part II (1986-1989)
The Spirit, Giver of Life and Love: Catechesis on the Creed, part III (1989-1991)
The Church: Mystery, Sacrament, Community: Catechesis on the Creed, part IV (1991-1996)
(Also published by Pauline Books & Media in 4 volumes, followed by volume 5 on Mary and volume 6 on Salvation History)
