Cataloging Biblical Materials Definitions of Psalters,
Evangeliaries, Liturgical Books Both the Psalms and the Gospels,
as Biblical books, were put to special use as liturgical books.
All the books of the Bible were represented in the Liturgy, that
is in public worship, but in the form of isolated fragments in
prayers and readings. There are two special forms of these
liturgical books. In both cases, the Biblical texts were
arranged according to the needs of the liturgical calendar, not
according to the order in which they appear in the Bible. The
current liturgy of the Catholic Church does not have the Psalter
per se, rather these manuscripts were produced when the Psalter
was a separate book. Since the content is the same (though not
the arrangement or function), there must be a way of
distinguishing them bibliographically. There are two ways of
distinguishing them from editions of the Biblical text: either
as an edition of the liturgical book, or as a work of art (or as
a reproduction of a work of art).