The Prayer Book Catechism is a neglected educational resource for the Church of England. For centuries it provided the framework for instructing young Christians in the basics of Christian belief and behaviour, but in recent years it has come to be almost forgotten. This study describes the place of the Catechism in the Prayer Book and how the Catechism came to be written. It then expounds the teaching of the Catechism and explains its continuing value as a basis for teaching the fundamentals of the Christian faith in basics groups and Confirmation classes.