The common explanation for how pie charts work is that we read them by angle. That of course would mean that donut charts would be bad, because you can’t see the angle when you take away the center of the pie. Changing the radius of a slice wouldn’t matter though, because that doesn’t change the angle. But there is no evidence that angle is how we read pie charts, quite the opposite actually. In this new video, I walk through five reasons why angle is not how we read pies, and what that means for other things we like to assume about them.
eagereyes
Visualization and Visual Communication
Main Content
Paper: From Jam Session to Recital: Synchronous Communication and Collaboration Around Data in Organizations
Who are the people who use data and visualization as part of their work every day? In particular, how do people use data as part of meetings, to present to others, to discuss their findings and recommendations, etc.? My colleague Matt Brehmer and I ran a pair of studies to find out.
EagerEyes Turns 15
EagerEyes is 15 years old today! Rather than look back at 15 years of visualization and blogging (though I will do a little of that too), I want to reflect a bit on what blogging means today and where things are going.
Can A Timeline Pie Chart Work?
Can you put ranked data into a pie chart that also represents time? This chart tries, and I think it succeeds.
Starter Pack
Some essentials to get you started on this site.
ZIPScribble Map
What happens when you connect all the ZIP codes in the U.S. in order? It's a surprising and interesting pattern. Explore yourself!
Pie Charts
Think you know pie charts? Here's an overview, tips&tricks, and cutting-edge research on the chart everybody loves to hate.
Techniques
Bar charts, pie charts, parallel coordinates, Venn diagrams, … What are they? How do they work? Which one do you use for what?
Papers
When I publish scientific papers, I write about them here. There's research on visualization techniques, perception, and other topics.
Calendar
eagereyes has been around for a bit! This interactive calendar lets you explore more than ten years' worth of content.