In Figure 4.14, the added marks act as a “look here” signal, drawing our audience’s attention more quickly to the right side of the graph. They provide for our audience the added benefit of allowing them to do some quick math in the event that they want to understand how big the backlog is becoming (if we think that is something they’d definitely want to do, we should consider doing it for them).
- Chapter 4 focus your audience’s attention
- from Storytelling with Data: A Data Visualization Guide for Business Professionals
- Publisher: John Wiley & Sons
- Released: November 2015
use data marks to focus eyes
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