| "The Shop of Ghosts" | |
| 100 Activities Based on the Catechism of the Catholic Church | |
| 100 Prophecies Fulfilled by Jesus | |
| 100 Top Picks for Homeschool Curriculum | |
| 1000 Years of Catholic Scientists | |
| 26 Fairmount Avenue | |
| 26 Fairmount Avenue Series | |
| 501 Latin Verbs Fully Conjugated in All the Tenses | |
| The 7 Habits of Highly Effective Teens | |
| Abigail and the Widow Mary | |
| Abraham Lincoln | |
| Accent Your Syllables | |
| Addition Songs | |
| The Adoremus Hymnal | |
| Advent Reflections, Come, Lord Jesus! | |
| Advent, Christmas, and Epiphany in the Domestic Church | |
| Akimbo and the Lions | |
| Algebra I: A Teaching Textbook | Quibble |
| All Ye Lands: World Cultures and Geography | Quibble |
| Along the Paths of the Gospel Series | |
| An Alphabet of Catholic Saints | |
| Alvin Fernald, Foreign Trader | |
| Alvin's Secret Code | |
| Amata Means Beloved | |
| America's Great (and not so great) Catholic Moments: A Perpetual Calendar | |
| American Cardinal Readers | |
| American Cardinal Readers: Book 1 | |
| American Cardinal Readers: Book 2 | |
| American Cardinal Readers: Book 3 | |
| American Cardinal Readers: Book 4 | |
| American Cardinal Readers: Book 5 | |
| American Cardinal Readers: Book 6 | Red Flag |
| American Cardinal Readers: Book 7 | |
| American Cardinal Readers: Book 8 | |
| American Cardinal Readers: Primer | |
| American History for Young Catholics, Grade 1 | |
| American History, Grade 5 | |
| The American Revolution for Kids, A History with 21 Activities | |
| Amos Fortune: Free Man | |
| Ancient Israelites and Their Neighbors: An Activity Guide | |
| And Then What Happened, Paul Revere? | |
| Andries | |
| Angel in the Waters | |
| The Angel's Alphabet | |
| Angels in Iron | |
| Angus and the Ducks | |
| Animal Tracks | |
| Animals in Winter | |
| Animals of God - Three Catholic stories for children | |
| Anno's Counting Book | |
| The Annotated Innocence of Father Brown | |
| AntWorks Ant Habitat | |
| Aquinas 101: A Basic Introduction to the Thought of Saint Thomas Aquinas | |
| Archaeology for Kids: Uncovering the Mysteries of Our Past | |
| Archimedes and the Door of Science | |
| Armor of God | |
| Art 1 for Young Catholics | |
| Art 4 for Young Catholics | |
| Art Fraud Detective: Spot the Difference, Solve the Crime! | |
| Art Masterpieces: A Liturgical Collection | |