The book contains brief information about the theological understanding of the Church, as it is revealed in the Holy Scriptures and Orthodox doctrine; about the structure of the Church and canon law, as well as forms of church life at the global and local levels, including the structure of the Russian Orthodox Church; about the structure and symbolism of an Orthodox church, sacred objects and priestly vestments used during worship; about Orthodox worship. The book “Fundamentals of the canonical structure and liturgical life of the Orthodox Church”, together with two others – “Fundamentals of Orthodox dogma” and “Fundamentals of Orthodox moral teaching” – is intended for use as a teaching aid in the system of additional religious education, in the process of catechesis, as well as for educational activities in parishes and outside the church fence. The publishing layout is saved in PDF A4 format.