The Handbook differentiates from its predecessor Anamnesis, published by the Pontifical Liturgical Institute. First, the subjects in the liturgical ordo, history, and tradition are examined as components of the theology of liturgy. Next, the Handbook pays significant attention to the role played by the human sciences in the liturgy (psycho-sociology, anthropology, linguistics, and the arts.) Pastoral and spiritual considerations receive appropriate treatment in light of liturgical principles, and general models based on the meaning and purpose of the liturgy are suggested. The materials of the East and the non-Roman West are integrated with the Roman, providing a comprehensive vision of Christian worship.
