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Blog 2019

Alberto Cairo, How Charts Lie

Robert Kosara / November 11, 2019

Review: Alberto Cairo, How Charts Lie

Alberto Cairo’s new book, How Charts Lie, takes readers on a tour of how charts are used and misused, and teaches them how to not be misled. It’s a useful book for both makers and consumers of charts, in the news, business, and pretty much anywhere else.

[Read more…] about Review: Alberto Cairo, How Charts Lie
YouTube teaser image

Robert Kosara / November 6, 2019

eagereyesTV: What is Data? Part 1, File Formats and Intent

We all use data all the time, but what exactly is data? How do different programs know what to do with our data? How is visualizing data different from other uses of data? And isn’t everything inside a computer data in the end?

[Read more…] about eagereyesTV: What is Data? Part 1, File Formats and Intent
Prolific front page

Robert Kosara / November 4, 2019

Prolific, the (Much Better) Mechnical Turk Alternative

Prolific is a crowd-sourcing platform for running studies. In contrast to the widely-used Mechanical Turk, it’s specific to studies, has a much better interface, pricing that’s fair to participants, and useful filters to find the right people for your study.

[Read more…] about Prolific, the (Much Better) Mechnical Turk Alternative

Robert Kosara / October 20, 2019

eagereyesTV Episode 3: 3D Pie Charts For Science!

How do we read pie charts? This seems like a straightforward question to answer, but it turns out that most of what you’ve probably heard is wrong. We don’t actually know whether we use angle, area, or arc length. In a short paper at the VIS conference this week I’m presenting a study I ran to answer this question – a study using 3D pie charts!

[Read more…] about eagereyesTV Episode 3: 3D Pie Charts For Science!
Evidence for Area as the Primary Visual Cue in Pie Charts

Robert Kosara / October 17, 2019

Paper: Evidence for Area as the Primary Visual Cue in Pie Charts

How we read pie charts is still an open question: is it angle? Is it area? Is it arc length? In a study I’m presenting as a short paper at the IEEE VIS conference in Vancouver next week, I tried to tease the visual cues apart – using modeling and 3D pie charts.

[Read more…] about Paper: Evidence for Area as the Primary Visual Cue in Pie Charts

Robert Kosara / October 9, 2019

eagereyesTV Episode 2: Unit Charts, Dot Plots, ISOTYPE, and What Makes Them Special

Charts usually show values as visual properties, like the length in a bar chart, the location in a scatterplot, the area in a bubble chart, etc. Unit charts show values as multiples instead. One famous example of these charts is called ISOTYPE, and you may have seen them in information graphics as well. They’re an interesting family of charts and they seem to have some unusual properties that most other charts don’t have.

[Read more…] about eagereyesTV Episode 2: Unit Charts, Dot Plots, ISOTYPE, and What Makes Them Special
13

Robert Kosara / October 2, 2019

XIII

This website is nw thirteen years old. While it has slowed down somewhat recently, it’s still alive and kicking. Now in its teens, it is looking for new experiences and trying out new things.

[Read more…] about XIII
rows of numbers

Robert Kosara / September 26, 2019

Data: Intent and Primary Interpretation

Take a JPEG image file and a CSV file. Which of these two is data? Is one of them more obviously data than the other? I think the key difference is the intent behind the data and its primary interpretation.

[Read more…] about Data: Intent and Primary Interpretation

Robert Kosara / September 16, 2019

Introducing eagereyesTV, My New YouTube Channel

After writing about visualization for over a decade, it’s time to mix things up a bit and try a new medium: video. I just uploaded the first video to my new YouTube channel, which I’m calling eagereyesTV. Take a look and tell me what you think!

[Read more…] about Introducing eagereyesTV, My New YouTube Channel
View of Porto, Portugal

Robert Kosara / September 2, 2019

Highlights from EuroVis 2019, Part 2

This is the second part of my highlights from EuroVis earlier this year in Porto, Portugal. There are papers about decision making and interaction, as well as a report on the capstone talk and a look to next year’s conference, which will be a bit different.

[Read more…] about Highlights from EuroVis 2019, Part 2
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More Blog 2019 Articles

  • Review: Alberto Cairo, How Charts Lie
  • eagereyesTV: What is Data? Part 1, File Formats and Intent
  • Prolific, the (Much Better) Mechnical Turk Alternative
  • eagereyesTV Episode 3: 3D Pie Charts For Science!
  • Paper: Evidence for Area as the Primary Visual Cue in Pie Charts

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