A 'prayer book' is a book outlining the
liturgy of
religious services.
★ The
Anglican prayer book is known as the '
Book of Common Prayer'.
★ The
Lutheran prayer book is often called
Agenda
★ The
Roman Catholic prayer book may be known as a '
Breviary'.
★ The
Jewish prayer book is known as the '
Siddur'.
★ The
Eastern Orthodox prayer book contains selections from the
Canonical Hours, the
Divine Liturgy, and devotional prayers that are used by the laity.