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Celebrating GIS Day 2017: Flow Maps – A Timeless Technique

 
Of the many popular techniques (heat maps, scaled map markers, and chloropleth) for visualizing data volumes, Charles Joseph Minard’s ‘flow maps’ continue to be among the most informative statistical representations. We at CPCS continue to use this timeless technique while accommodating increasing data and visualization complexity. Enjoy our custom map on trade flows with your next glass of wine, as you learn about trade flows then and now.