BOOK OF NEEDS - (Euchologion, Sl. Sluzhebnik) A book containing the texts of the Liturgies and prayers required for the administration of Sacraments and other offices.

The Book of Needs includes the order of service for the various Sacraments. Other services found in the Book of Needs are the Burial Service, the Blessing of Water, the Prayers at the Birth of a Child, the Naming of a Child and his Churching, as well as blessings for other occasions.