Don't think too much, just hit 'Space' and it will guide you correctly through the slides.
Altough even the guided tour feels spatially incorrect...
Good intentions, awful execution.
On the other hand, if the slides are intended for reading, then yes, they may be a usability disaster. But then, slides aren't going to be the best format for reading anyway.
Click on the background to see the voronoi cells, script here:
Also in book: http://shop.oreilly.com/product/0636920026938.do
Also http://www.dashingd3js.com/ is a good tutorial for learning d3.js (goes into more detail than the linked slideshow).
I tried to add tons of comments explaining what's going on.
If you are interested in learning d3, there are a bunch of tutorials on the GitHub wiki: https://github.com/mbostock/d3/wiki/Tutorials, and I like this one in particular: http://mbostock.github.com/d3/tutorial/circle.html. Not comprehensive, but very clear on what it covers.
Let me also recommend this talk for d3 starters: http://vimeo.com/35005701. It starts with very basic stuffs (JSON), and has lots of live demos. I kinda learned from it when making this presentation.
I wanted to map a few tweets the other day and the examples helped a lot
I don't understand whats going on here, what does array[, accessor] and [start, ]stop[, step] mean? I get an error "SyntaxError: Unexpected token ," which I tend to agree with.
Wonder what other good tuts are out there?