Blog Archives

The Bits Are Rotting in the State of Data Journalism

July 14, 2016
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The Bits Are Rotting in the State of Data Journalism

News articles are an incredibly important source of historical information. Online media and interactive pieces are much more at risk of breaking of disappearing, at least in theory. Well, it's not just theory. A quick look around shows a number of even fairly recent pieces in major publications that are broken today. The screenshot above is from … Continue reading The Bits Are Rotting in the State of Data Journalism

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A Reanalysis of A Study About (Square) Pie Charts from 2009

July 11, 2016
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A Reanalysis of A Study About (Square) Pie Charts from 2009

After my recent posting on the results of our pie charts studies, Jorge Camoes teased me on Twitter about square pie charts. So I dug up the data from a study we ran many years ago to look at how well they compare to bars, pies, and squares. In 2009, my then-Ph.D. student Caroline Ziemkiewicz and … Continue reading A Reanalysis of A Study About (Square) Pie Charts from 2009

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Link: Mona Chalabi’s Data Sketches on Instagram

July 7, 2016
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Link: Mona Chalabi’s Data Sketches on Instagram

Mona Chalabi has one of the most interesting Instagram feeds for people interested in data visualization. She draws data by hand. It's interesting data, too, and her approach is accessible and inspiring. Mona is data editor at Guardian US, and was formerly at FiveThirtyEight and before that at The Guardian in the UK.   Her sketches … Continue reading Link: Mona Chalabi’s Data Sketches on Instagram

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New, Improved Traveling Presidential Candidate Map

July 5, 2016
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New, Improved Traveling Presidential Candidate Map

Many years ago, when this website was still young, I created a map of all the ZIP codes in the U.S. in numeric order and then wondered about the shortest path through all of them. I dubbed that The Traveling Presidential Candidate Map. Here is an improved version that’s interactive and much more efficient than the … Continue reading New, Improved Traveling Presidential Candidate Map

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The Café Wall Illusion in a Bar Chart

June 30, 2016
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The Café Wall Illusion in a Bar Chart

The Café Wall Illusion makes you to see perfectly parallel lines as being at an angle. It’s a curiosity and a cool perceptual illusion – except when it shows up in a bar chart, as it did in this example. The classic café wall illusion was first spotted on a tiled wall, where the misaligned black … Continue reading The Café Wall Illusion in a Bar Chart

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An Illustrated Tour of the Pie Chart Study Results

June 28, 2016
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An Illustrated Tour of the Pie Chart Study Results

In two papers, Drew Skau and I recently showed that our idea of how we read pie charts is wrong, that donut charts are no worse than pie charts, and a few more things. Here is a detailed walk-through of the results of the three studies we conducted for this purpose. Let’s go on a little journey … Continue reading An Illustrated Tour of the Pie Chart Study Results

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Publicize, Don’t Just Publish!

June 22, 2016
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Publicize, Don’t Just Publish!

What does it mean to publish a paper? Is it just to add a bullet point to your CV, or do you want the world to know about your research? What does it mean to publish today? Here are some thoughts and pointers on how to get the word out about the amazing work you … Continue reading Publicize, Don’t Just Publish!

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EuroVis 2016, Thursday and Friday

June 10, 2016
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EuroVis 2016, Thursday and Friday

After Tuesday and Wednesday, EuroVis continued for the rest of the week. There were papers about visualization, interaction, networks, and other stuff, a dinner in a former church, and finally the capstone.  First a little update: you can now watch Anders Ynnerman’s epic keynote. Coordinated Views and Interaction Design Who says coordinated views have to be next … Continue reading EuroVis 2016, Thursday and Friday

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EuroVis 2016, Tuesday and Wednesday

June 8, 2016
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EuroVis 2016, Tuesday and Wednesday

EuroVis 2016 is happening this week in Groningen, The Netherlands. This is the report from the first two-and-a-half days,  which saw some symposia, a keynote, and many paper presentations. The pre-conference program kicked off on Monday afternoon. In addition to a few small symposia, there was also a tutorial on machine learning and visualization. It was pretty basic, … Continue reading EuroVis 2016, Tuesday and Wednesday

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EuroVis Coverage and Running

June 1, 2016
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EuroVis Coverage and Running

For people not attending EuroVis: I will be tweeting from there next week and write postings here, like I have in the previous years. For people who will be attending: let’s meet up and run! EuroVis Coverage I will be tweeting during the sessions – assuming there’s Wifi – Tuesday through Friday (June 7–10). EuroVis being in the … Continue reading EuroVis Coverage and Running

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