I was setting about to identify the documents - primarily decrees and letters - that are embedded in OT Scripture. I picked out the ones I knew - Ezra, 1 & 2 Maccabees - then went looking for others. I discovered that Ezra had genre coding indicating letters but Maccabees did not. But I can't find a way to search for the genre coding in Ezra.
So the question is: If you wished to identify documents embedded in the Old Testament, how would you do it? So far i have around 23.