Chapter 4

Pathways, Purposes, and Points of View

Along These Lines…

 The trail is the thing, not the end of the trail. Travel too fast and you miss all you are traveling for.

 – LOUIS L’AMOUR

Often, the most interesting aspects of data are not individual data points but the pathways connecting them. Whether it’s showing patterns of people moving from one place to another or revealing links between individuals in various kinds of networks, one of the most powerful capabilities of visualizations is using graphical elements to make relationships within the data plainly visible. When these paths are made visible with color, lines, and shapes, many interesting stories and questions can emerge. For example, in the visualization shown in Figures 4.1 and ...

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