Crockford's Clerical Directory provides biographies of more than 27,000 clergy in the Church of England (including the Diocese in Europe), the Church of Wales, the Scottish Episcopal Church and the Church of Ireland. 

Its sister publication The Church of England Year Book contains information on the local and national structures of the Church of England, Anglican Provinces around the world, and Christian organizations in the UK.

Crockford is also available as an on online edition, updated on a daily basis.