Take a look. Even if you've never heard the term "sparkline" before, it should be interesting. I've got a list of resourcess for further reading.
I was going for a Lessig/Tufte sort of thing, so the slides are mostly just images and I also showed some web pages. To make a small mark against the plague of post-presentation PowerPoint slides posted all over the web, I've put up a "transcript" of what I meant to say.