Bible Doctrine for Younger Children is a two-volume series consisting of twenty chapters which contain simple explanations of all major biblical doctrines. Book A contains chapters 1-10 and Book B chapters 11-20. The explanations were written for children nine years of age and older. Bible Doctrine for Older Children, Book A and B, is a higher level two-volume series geared for children eleven years of age and older. These books are written in a clear, precise, and easy-to-read style. Each series includes more than 150 stories and illustrations to help explain the doctrinal concepts being taught. The younger series incorporates all of the catechism questions and answers for memorization from Rev. Ledeboer's Simple Catechism Questions for Children, and the older series from Rev. Donner's Bible Truths for Catechizing. The books were written for home, personal, or family reading; school Bible doctrine teaching; or church catechetical instruction.