Hiding isn’t a bug of visualization, it’s a feature. It’s not just fanciful visualizations that do it: their poor cousins, spreadsheets, do it too — with much more impact. My point isn’t to condemn visualization, of course — that would be ridiculous. Every serious decision made anywhere in the world now — in government, business, manufacturing, construction, science, education, civil society, and the military — is fundamentally shaped by visualization. That is why we need to think more seriously about how

Source : How to Lie with Analytics, Ted Byfield – Mozilla Internet Citizen