De,
My pleasure. The guy has quite a knowledge of ancient languages and derivations of words across languages, so it seemed to fit Joey's interest in patterns and connecting the dots. I hope he enjoys it. When I saw you mention Mayan, I figured the Sumerians might be of interest, too.
It's also the first time I have seen whole Sumerian texts on a shelf, towards the beginning. I have seen small clay fragments with writing on them, never knowing what the whole looked like. Amazing they survived.