Visualization: Brief Intro in The Times

What kind of personnel expertise is needed to create all these cool visualizations? I need to watch for information about that.
Here's a good introduction to visualization in the January 6 The New York Times; the piece is about visualization in general, and not just maps, notwithstanding the article's title.
Like many designers, Eric Rodenbeck has had a long relationship with bar graphs and pie charts. He just thinks they are a little old school for today’s data-filled world.
Mr. Rodenbeck has experimented with animation, three-dimensional maps that show the height of buildings by color changes and a representation of how photos spread on Facebook that looks like ice crystals forming on a car window. He’s even tried to characterize in a graphic how people were communicating in back channels at business conferences, with the biggest talkers at the center of a series of circles.
He is, in short, trying to rethink how data is presented.
“It doesn’t work if it’s not moving,” said Mr. Rodenbeck, the head of Stamen Design, a San Francisco studio that Google, Facebook and Microsoft have all used for help in turning fast-paced digital information into easily understood images. “It doesn’t work if you can’t touch it.”
Nowadays, devices and people are unceasingly uploading all kinds of information about the economy, locations, weather and even what sweater makes them happy. With this flood of data, some believe traditional ways of displaying information do not work well anymore. So there is a demand for Mr. Rodenbeck’s sort of creative thinking about the humble pie chart.
Article continues at link.