Albert Barnes Commentary 2 Chronicles 9:29

"Now the rest of the acts of Solomon, first and last, are they not written in the history of Nathan the prophet, and in the prophecy of Ahijah the Shilonite, and in the visions of Iddo the seer concerning Jeroboam the son of Nebat?" — 2 Chronicles 9:29 (ASV)

The book of Nathan... On the “books” here mentioned, see the introduction to Chronicles, the second note.

We hear nothing of Iddo in Kings; but he is mentioned below twice (2 Chronicles 12:15; 2 Chronicles 13:22). In the latter of these passages he is called not “the seer,” but “the prophet.” He seems to have been the author of three works:

1. Visions against Jeroboam;
2. A book of genealogies; and
3. A commentary or history.

According to some, he was identical with Oded, the father of Azariah, who prophesied in the reign of Asa (see the 2 Chronicles 15:1 note).