As the saying goes, a picture is worth a thousand words. What happens when you have numbers/words/concepts and you would like explain what the numbers/words/concept means in less than a thousand words? Use a picture!
In the words of smashmagazine, infographics can be described as visual representations of information, data or knowledge — are often used to support information, strengthen it and present it within a provoking and sensitive context, depending on designer’s creativity. For a better understanding/appreciation of the history of the 2010 World Cup's least favorite instrument, check out the "vuvuzela" infographic below (made by socialradar via mashable).
many types of infographics out there.