Really like this, look forward to seeing the whole series, I do a lot of graphical charts/infographics so I'm fond of this type of information.

You might want to kern the numbers a little tighter as well as the CAP letter on the small cap type, they seem to me a little too open.

Will you be using this font for the entire series? Not sure if you want to stay more antique, but a sans serif font or even a squared serif might work better?

Is there a reason to duplicate the flow on the right hand side, it's not giving me any new information?

Really great books on this subject - Edward Tufte's books are really nice.