is the 3 grade textbook in the series. It is an age-appropriate introduction to the first half of the Baltimore Catechism #1. is a series of religion textbooks produced in the late 1950s, based on the Baltimore Catechism. Each grade level is well-written for its intended age group and is thorough and orthodox in its presentation of the faith. These texts have stood the test of time and are still being used by families today. Now this series can be purchased in economical softcover versions, or more durable hardcovers--depending on your family's budget!