[quote=@Cyclone]
You know what I just realized? You lot are all making books and libraries, but the entire world is illiterate. Nobody invented writing or reading that I can recall.
[/quote]

Zerabil could always read and write, he was created with a huge amount of knowledge. As for reading and writing, they're green on the technology list. They've been green for a long while. I'd say that (rich) Garakains and Zerabil's people were literate. Confederates and Ialu's people never needed it, so it's understandable why they have not yet learned. Uristan, being quite an advanced kingdom, is probably full of literate people. Dragons, it would seem, are also avid readers.