A liturgical guide used by Eastern Orthodox Christians provides standardized texts for services, including daily prayers, hymns, and readings for feasts and fasts. These books often contain supplementary material such as calendars, instructions for liturgical practices, and the lives of saints. Various editions exist, reflecting the liturgical traditions of specific jurisdictions or monastic communities.
These guides serve as a vital link to centuries of tradition, offering a structured framework for spiritual growth and participation in communal worship. Their consistent use across generations reinforces shared beliefs and practices, fostering a sense of unity within the Church. Historically, these compiled texts played a key role in preserving and transmitting theological understanding and liturgical practices, especially during periods of upheaval or persecution.