The Most Effective Way of Visualizing Funnels

I first learned about Sankey diagrams in my thermodynamics class and they’ve since become one of my favorite data visualizations and analysis tools. Sankey diagrams, like the one above of visitors to this blog, show the flow of things. Originally created for measuring the flow of energy through powerplants, they are incredibly useful for content marketing analysis, visitor analysis or any other kind of funnel analysis. The best Sankey diagram ever created is Charles Joseph Minard’s depiction of the Napoleonic War, which was made famous in Edward Tufte’s Book, The Visual Display of Quantitative Information.

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