Book excerpt: The recent celebration of the 350th anniversary of the 1662 Book of Common Prayer has helped to stimulate a renewed interest in its teaching and fundamental contribution to Anglican identity. Archbishop Cranmer and others involved in the English Reformation knew well that the content and shape of the services set out in the Prayer Book were vital ways of teaching congregations biblical truth and the principles of the Christian gospel. Thus the aim of this series of booklets which focus on the Formularies of the Church of England and the elements of the different services within the Prayer Book is to highlight what those services teach about the Christian faith and to demonstrate how they are also designed to shape the practice of that faith. As well as providing an account of the origins of the Prayer Book services, these booklets are designed to offer practical guidance on how such services may be used in Christian ministry nowadays. In this overview of the Book of Common Prayer, Peter Adam brings us back again and again to its emphasis on the 'very pure word of God', setting the gold standard and hallmark of all our liturgy. Peter Adam served as Vicar of St Jude's Carlton, and as Principal of Ridley College in Melbourne Australia. He is currently Vicar Emeritus of St Jude's, and Canon of St Paul's Cathedral Melbourne.