The Canterbury and York Society is a British text publication society founded in 1904 which publishes scholarly editions of English medieval (pre-Reformation) ecclesiastical records. The great majority of its publications are editions of the registers of bishops and archbishops (of which it has published over fifty, some in several volumes); but other types of ecclesiastical record also fall within its remit. Its name is derived from those of the two provinces of the Church of England, Canterbury and York: its joint presidents are the two current Archbishops of Canterbury and York. The society endeavours to publish one volume a year, and its 100th volume appeared in 2010.