→Typikon (Ustav): Typikon Translation Project page no longer exists. Replaced broken link with newest Internet Archive copy. Changed wording to reflect the fact that it is not a current project, with a link to a page that contains an explanation.
The '''Apostolos''' ('book of the apostle') is the book containing the first scripture reading in the [[Divine Liturgy]]
. Although this reading is called ' the Epistle ,' it includes lections from the Book of Acts and the prokeimena and alleluias that are sung before and after the epistle, respectively.
The '''Archieratikon''' (
'book for the bishop') is the [[bishop|bishop's]] liturgical service book, containing the pontifical editions of the Divine Liturgies of St John Chrysostom and St Basil the Great, the [[Liturgy of the Presanctified Gifts]], and other episcopal services, such as [[ordination|ordinations]].
Also known as the Tetraevangelion, the '''Evangelion''' is the Book of Gospels, usually arranged by the pericopes appointed to be read throughout the liturgical year. It is generally kept on the [[altar table]] in a metal case decorated with icons of the evangelists; tradition forbids the use of animal skin on the altar table.
Great Euchologion ('' Bolshoi Ieresky Molitvoslov'')==[[ Great Euchologion|Primary Article]]
euchologion to mega or '''Great Euchologion''' principally contains the prayers of the [[priest]], [[deacon]], and [[reader]] for [[Vespers]], [[Orthros]], and the Divine Liturgy.
The '''Hieratikon''' (also spelled Ieratikon, also known as the Hierotelestikon and the Liturgikon), the "book of the priest" contains the priest's prayers for Vespers, Orthros, and Divine Liturgy.
The '''Menaia''' ("books of the
monmths") is the collection of twelve books (each a Menaion), one for each month of the calendar year, containing the propers for the immovable feasts and the saints' days falling in that month.
'''Octoechos''' ("book of the eight tones") refers to two books containing the common of the cycle of liturgical services relating to the eight tones—'''''The Great Octoechos''''' (Parakletike, "book of supplication") and an abridged version of it called the '''''Little Octoechos''''', which contains only the materials for Sundays.
==Pentecostarion (''Tzvyetnaya Triod'')==
The '''Pentecostarion''' conatins the propers for the services of the [[Pascha|Paschal]] season, i.e., from the Day of Pascha until the First Sunday after [[Pentecost]].
The '''Psalter''' is simply the biblical book of the Psalms of David arranged for liturgical use, divided into twenty sections called kathismata. Each kathisma is further divided into three stasis.
==Lenten Triodion (''Postnaya Triod'')==
[[Lenten Triodion|Primary Article]]
The '''Lenten Triodion''' ('book of the three odes') contains the propers from the beginning of the pre-Lenten season (the Sunday of the Publican and Pharisee, the 10th Sunday before Pascha) until Holy Saturday.
The '''Typikon''' (also spelled as Typicon) is the "book of directives and rubrics, which regulate the order of the divine services for each day of the year. It presupposes the existence of other liturgical books which contain the fixed and variable parts of these services. In the strict monastic sense, the Typikon of the monastery includes both the rule of life of the community as well as the rule of prayer." [http://www.goarch.org/en/ourfaith/articles/article8505.asp#_edn27]
*[http://www.synaxis.info/typicon/ Typikon Translation Project], a project to translate the St. Sabbas Typikon into English
. includes a scan of the Typikon in Greek and Slavonic.
*Another English translation in progress of the [http://www.angelfire.com/journal2/typikon/ Russian Orthodox Typikon] (St. Sabbas)
*[http://users.forthnet.gr/ath/frc/psprotheoria.html Protheoria of the Biolakes Typikon], in English, tr. Rev. Dr. Konstantinos Terzopoulos
==Other liturgical books==
In addition to the official liturgical books listed above, there are unofficial books that are published for the use of the laity. These include:
Sinekdimos or "companion"
*The Holy and Great Week