Does it make sense to change up the colors or graph types so the audience doesn’t get bored? My answer is a resounding No! The story you are telling should be what keeps your audience’s attention (we’ll talk about story more in Chapter 7), not the design elements of your graphs. When it comes to the type of graph, you should always use whatever will be easiest for your audience to read. When showing similar information that can be graphed the same way, there can be benefit to keeping the same layout as you essentially train your audience how to read the information, making the interpretation
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