In the informative introduction to this beautifully written companion to the Evening Cycle of Psalms (as set out in the Church of England's Book of Common Prayer), Michael Sadgrove reminds us that the Psalms have been central to public worship and personal prayer for the entire history of the church. They are indeed one of the world's greatest spiritual treasures, 'full of heartfelt utterances', in the words of Martin Luther, and as vital a source...