The details of the ritual and the differences between East and West belong to liturgiology.

Among the parts published are sections on agriculture, liturgiology, tactics, and medicine (including veterinary practise)."

It was, however, in sacramental theology, liturgiology, and notably ecclesiastical music that Gerbert was mainly interested.

Later, during the summers of 1976 and 1977 he took graduate studies in Liturgiology at St. John's University in Collegeville, Minnesota.

According to Ephrem, Boswell mistranslates, misinterprets, and tendentiously organizes texts, and his "knowledge of Orthodox liturgiology is, in effect, non-existent."

He wrote on "classical literature, medieval and modern Latin ... Coptic, hagiography and liturgiology, palaeography and bibliography, Spain, Portugal, Madeira, wine and food".