Hieratikon
The Hieratikon (also spelled Ieratikon, also known as the Hierotelestikon and the Liturgikon; Slavonic: Sluzhebnik), the "book of the priest," is the Book of Rites of the Orthodox Church that contains the priest's prayers for Vespers, Orthros, and Divine Liturgies of St. John Chrysostom, St. Basil the Great, and the Liturgy of the Presanctified Gifts. These texts usually also include additional sections, such as a the Dismissals for various days of the week and for Great Feasts, Prokeimena, the Menologion, Magnifications (Slavonic: Velichaniye) for feast days, and instructional material which explains what clergy should do in the case of various unexpected occurrences in the services.
