A snail can sleep for three years and you will never find an occasion to use that knowledge.
Source: ilovecharts
The Best Data Visualization Projects of 2011
Nathan Yau from FlowingData has made a list of some of the most interesting infographics of 2011. Apart from effectively conveying their message, the images selected are also very visually appealing. You can see the full list here.
Correlation or Causation?
Correlation may not imply causation, but it sure can help us insinuate it.
Source: businessweek.com
Master of Arts in Political Science at the University of São Paulo. 
