Lectionary

Page from the 11th-century "Bamberg Apocalypse", Gospel lectionary. (Bamberg State Library, Msc.Bibl.140).

A lectionary (Latin: lectionarium) is a book or listing that contains a collection of scripture readings appointed for Christian or Jewish worship on a given day or occasion. There are sub-types such as a "gospel lectionary" or evangeliary, and an epistolary with the readings from the Epistles of the New Testament.