The Roman Catholic lectionary includes a two-year cycle for the weekday mass readings (called Cycle I and Cycle II). Odd-numbered years are Cycle I; even-numbered ones are Cycle II. The weekday lectionary includes a reading from the Old Testament, Acts, Revelation, or the Epistles; a responsorial Psalm; and a reading from one of the Gospels. These readings are generally shorter than those appointed for use on Sundays. The pericopes for the first reading along with the psalms are arranged in a two-year cycle. The Gospels are arranged so that portions of all four are read every year. This weekday lectionary has also been adapted by some denominations with congregations that celebrate daily Eucharistic services. It has been published in the Episcopal Church's Lesser Feasts and Fasts and in the Anglican Church of Canada's Book of Alternative Services (among others).