-This volume is intended to meet a widely felt need for an up-to-date and concise source book on the principal teachings of the Catholic Church. Since the close of the Second Vatican Council, there has been such an accumulation of ecclesiastical constitutions and decrees and so many changes they introduced in Catholic practice that few people have been able to keep up with all that has happened... A parallel purpose of this volume is to offer those who use it a handy guidebook of the Catholic tradition, whether formally documented in ecclesiastical sources or implicitly accepted by the...