Hans Rosling, a professor in Public Health from Sweden, shows how you can take temporal information to make sense of your data - in the cases below the relationship between developed and non-developed countries. He comes up with answers which might surprise you. This is his 2006 TED talk:
Now for his 2007 TED talk (watch out for his sword trick at the end - had me cringing!)
I blogged about the relationship between information visualisation and information retrieval. What amazes me about these presentations is that Hans is able to present very complex data in a way which is very easy to comprehend for a non-expert. Case of a 'visualisation intermediary' at work here?