This highly useful book provides quick reference and accessibility to the current canon law of both churches. The entry for every canonical term presents its definition and the law relating to it in each canon. There are cross-references throughout to help the reader make further significant connections. Also included are terms not easily translated across the two canons, and some common terms from the Eastern Catholic Church. The appendices contain changes to the Universal law of the Roman Catholic Church which are outside the 1983 Code of Canon law. At a time when Christians are increasingly working side by side, this is an essential resource for pastoral workers, scholars and clergy in all the churches.