I'm sure a lot of you will be interested in this one. Edward Tufte is speaking at the Met in NYC. So if you happen to be in the area, it's probably worth a look:
http://www.metmuseum.org/calendar/ca_program.asp?Eventid={0CD9CE47-4D31-4190-97BC-CAEF49C111DF}
"The leading authority on information design will discuss how drawings from the Middle Ages exhibit "graphical excellence." Melanie Holcomb, associate curator, Department of Medieval Art and The Cloisters Museum and Gardens, MMA, introduces the afternoon's talk.
This Sunday at the Met is held in conjunction with the special exhibition Pen and Parchment: Drawing in the Middle Ages."