What are the advantages and disadvantages of a formal liturgy as against extemporized worship? After the restoration of the English monarchy in 1660, it was clear that some form of national ‘Church of England’ would be reconstructed – but would it have a set liturgy, and if so what would it be like? This paper considers over a hundred books published in the following three years, debating whether the Book of Common Prayer should be imposed, reformed or abandoned, with arguments based on biblical precepts, the practice of the early Church and reformed Churches, the duties of ministers and the needs of congregations. The debate shows how the views of both conformists and nonconformists had developed in response to the religious free-for-all of the 1640s and 1650s, though it had little influence on political decisions.