Typica
The Typica (Church Slavonic: Изобрази́тельны, Izobrazítelny) is a part of the Divine Office of Eastern Orthodox worship and Eastern Catholic liturgy in the Byzantine Rite that is appointed to be read on any day the Liturgy is celebrated with vespers, or the Typicon does not permit the celebration of the Liturgy (as occurs, for example, on weekdays during Great Lent), or may be celebrated but is not either because no priest is present. When the Liturgy may be celebrated but is not, then the Typica is read at the time the Liturgy is appointed to be celebrated, and it contains the scriptural readings and other propers for the Liturgy.
The Typica, like the hours that it is aggregated with, is rarely read in Greek parish churches, but it is relatively common in Slavic churches.
The name "Typica" refers to the "Typical Psalms" (Psalm 102, Psalm 145, and the Beatitudes), which together with parts of the Liturgy of the Catechumens comprise the non-lenten form of the Typica.