Infographics - how might we use them?

Twitter, again, has led me to wonder about using infographics for information literacy - in the classroom and in the library. Lots of people are putting lots of effort into creating these wonderful little graphic interpretations of the world and its issues - so how might we best use them? This complex little video clip http://dvanw.com/video/videodisplay.html?32 entitled "How to feed the world" is a perfect example. Interpreting information in graphic format, discussing signs and symbols, making predictions about statistical information, encouraging empathy (values, connection to our world). An excellent tool which bears further investigation. Oh, and did I mention, they're free? Thanks to Larry Ferlazzo for tweeting this particular example.