"Here are some web-based papers and articles you might read if you are interested in learning more about Dr. Seymour Papert's theory of constructionism."
"It was about five years ago when I got into visualization. Before I actually made anything, I read books and guides that made suggestions and preached a handful of design principles, but when it was time to make a data graphic for publication, I didn't know what I was doing. Theory is great. Being able to apply it to your own data is better."