Whether it was Otto Von Bismarck, John Godfrey Saxe, or Mark Twain who said it first, you really don't want to see how these things are made. "Laws, like sausages, cease to inspire respect in proportion as we know how they are made." Same goes for data visualizations, or just about any processing of large sets of data from sometimes messy, unreliable sources.While everyone likes the final product, most people who don't work directly with data have no clu [...]