Of the three Prayer Books the 1662 Book of Common Prayer is closest to the Reformed 1552 Prayer Book in doctrine and liturgical usages. It kept most of the Biblical-Reformation theology of the later. The 1928 American Prayer Book and 1962 Canadian Prayer Book, on the other hand, incorporate doctrinal and liturgical changes that the later ... This illuminated prayer book for the entire year, in one massive volume, may have been used by the cantor in the synagogue. It includes the largest existing compilation of piyyutim (liturgical poems) with commentaries, many of these texts previously unknown.
But Western Rite Orthodoxy is less well known. Orthodoxy has about 250 million adherents in the world - making it the world's second largest Christian grouping [Roman Catholicism And, as I indicated, there are Anglican Prayer Books that have restored the Nicene Creed without the filioque addition.