There is, however, no "official" eastern (Babylonian) targum to Ketuvim, equivalent to Targum Onkelos on the Torah and Targum Jonathan on Nevi'im.
In fact, the Babylonian Talmud explicitly notes the lack of a Targum to Ketuvim, explaining that Jonathan ben Uzziel was divinely prevented from completing his translation of the Bible.
However, the beginning and end of the book of Job are in the normal prose system.
The five relatively short books of Song of Songs, Book of Ruth, the Book of Lamentations, Ecclesiastes and Book of Esther are collectively known as the Hamesh Megillot (Five Megillot).
All Jewish liturgies contain copious extracts from the Psalms, but these are normally sung to a regular recitative or rhythmic tune rather than read or chanted.
Some communities also have a custom of reading Proverbs in the weeks following Pesach, and Job on the Ninth of Ab.
(In citations by chapter and verse numbers, however, the Hebrew equivalents of "Nehemiah", "I Chronicles" and "II Chronicles" are used, as the system of chapter division was imported from Christian usage.) Collectively, eleven books are included in the Ketuvim.
The Ketuvim is the last of the three portions of the Tanakh to have been accepted as Biblical canon, it is said that the people of Israel were adding what would become the Ketuvim to their holy literature shortly after the canonization of the prophets.
The Three Poetic Books (Sifrei Emet) The Jewish textual tradition never finalized the order of the books in Ketuvim.
The Babylonian Talmud (Bava Batra 14b–15a) gives their order as Ruth, Psalms, Job, Proverbs, Ecclesiastes, Song of Solomon, Lamentations of Jeremiah, Daniel, Scroll of Esther, Ezra, Chronicles.
There is no formal system of synagogal reading of Ketuvim equivalent to the Torah portion and haftarah.
It is thought that there was once a cycle for reading the Psalms, parallel to the triennial cycle for Torah reading, as the number of psalms (150) is similar to the number of Torah portions in that cycle, and remnants of this tradition exist in Italy.