Data Visualization

Data visualization blogs

What if the RNC assigned seating randomly

July 21, 2016
By
What if the RNC assigned seating randomly

The punditry has spoken: the most important data question at the Republican Convention is where different states are located. Here is the FiveThirtyEight take on the matter: They crunched some numbers and argue that Trump's margin of victory in the...

Read more »

The Bits Are Rotting in the State of Data Journalism

July 14, 2016
By
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

Read more »

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

July 11, 2016
By
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

Read more »

Link: Mona Chalabi’s Data Sketches on Instagram

July 7, 2016
By
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

Read more »

Confusion is not limited to complex dataviz

July 7, 2016
By
Confusion is not limited to complex dataviz

This chart looks simple and harmless but I find it disarming. I usually love the cheeky titles in the Economist but this title is very destructive to the data visualization. The chart has nothing to do with credit scores. In...

Read more »

New, Improved Traveling Presidential Candidate Map

July 5, 2016
By
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

Read more »

The Café Wall Illusion in a Bar Chart

June 30, 2016
By
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

Read more »

A Tufte fix for austerity

June 29, 2016
By
A Tufte fix for austerity

Trish, who attended one of my recent data visualization workshops, submitted a link to the Illinois Atlas of Austerity. Shown on the right is one of the charts included in the presentation. This is an example of a chart that...

Read more »

An Illustrated Tour of the Pie Chart Study Results

June 28, 2016
By
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

Read more »

Raining, data art, if it ain’t broke

June 22, 2016
By
Raining, data art, if it ain’t broke

Via Twitter, reader Joe D. asked a few of us to comment on the SparkRadar graphic by WeatherSpark. At the time of writing, the picture for Baltimore is very pretty: The picture for New York is not as pretty but...

Read more »


Subscribe

Email:

  Subscribe