Complex Diagrams

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There are many visualizations of social networks, most of which focus on who knows who. They provide a basic view with limited utility. Some visualizations refine this basic view by grouping areas of people who share common contexts (e.g. college, work, etc.). That approach can add some insight through the slightly increased complexity, but it is still a very limited view of the network.

This movie reveals more knowledge by showing not only which individuals know each other, but also when and how the social network formed, by calling out the contexts and individuals responsible for an introduction between two new friends. Visually representing more complexity allows the viewer a deeper understanding of the social dynamics and causalities involved.

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I’m very excited to announce that I’m technical editor for, and contributing a chapter to, the book Beautiful Visualization, due out in April from O’Reilly.

It is a collection of case studies and articles discussing how various beautiful information visualizations were achieved and how to create your own.

Stay tuned for updates as events warrant.

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Closing comments on this post, as it’s attracting a lot of spam. I’ll likely re-open it later.

This is a short story of user experience, information visualization, and design choices. I like Rivendell Bicycle Works for a lot of reasons (see below). However, one thing they don’t do particularly well is allow you to compare products on their web site.

When comparing a few randomly sorted parts, such as rear deraillers, looking at all 3 or 4 choices and then choosing one is relatively easy. When the choice is among 16 tire models in three rim diameters, various widths, some with various features (kevlar bead, anti-puncture, etc.), spread across three pages, in no particular* order, doing a comparison and then confidently choosing one is really, really difficult.

To address this sub-optimal user experience issue, I created this chart to make life easier for customers, improve the interface for comparing the tire offerings, and hopefully improve sales.

It allows the (potential) customer to quickly focus on the appropriate tires(s) based on desired rim size, tire width, and toughness/quickness, and then click the chart to go directly to the tire’s page. keep reading…

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VizThink ‘09 was awesome. I’ve come back exhausted, energized, and inspired, with a load of new ideas.

Thanks to everyone who presented, who attended my sessions, who asked good questions in all situations, who I talked with and listed to and shared meals with. It was a fantastic time. Special thanks goes out to the crew (and families of!) who put on the conference; I appreciate your hard work and perseverance.

As promised, here are the documents that support my sessions. The best online version of my User-Centered Information Design talk is the version from Infocamp ‘08, which includes narration. The only slides missing from that presentation are the design process guidance slides, which I’ve made into a handy PDF.

The snapshot talk on visualizing complexity was supported by this document.

As always, I’d love to hear from you about what worked, what didn’t, lingering or new questions, and anything else on your mind.

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Here’s a straightforward case of two different agencies presenting similar information in different ways, one with better design choices and one with more arbitrary, less useful choices. Both King County and the City of Seattle (where I live) publish regional bike maps with markings for bike lanes and trails. Compare how they are encoded. keep reading…

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This is the slideshow and audio from my Infocamp 2008 presentation on User-Centered Information Design.

The audio synchronization seems to work when played straight through, but not when you manually advance the slides.

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The Takeaway has a clever interactive graph, showing the summary from a different poll or tracking web site on each row, and the states as columns. Column width reflects the number of electoral votes for that state. It’s a good way to get an aggregate view of what’s going on, as each source is a little different.

They’ve done a great job with this; it’s a great presentation of a ton of information abstracted in a constructive manner. The key issues (weight and inclination of each state) are present, with very little else to get in the way.

There are a few changes I’d make. The mouseover key is a little awkward, as it obstructs a lot of the image. I probably would have gotten rid of it altogether, and put the state info in the footer, as they’ve done with the poll name and score. I probably also would have put the score for each row in the row, either at the left, near the icon, or in a rightmost column, rather than forcing you to mouseover each column.

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Electoral-Vote.com is an excellent and popular site for tracking polls for president on a state by state basis. One of the nice features is a historical graph that shows the changing number of electoral votes for each candidate over the election season.

Currently it looks something like this:

(click to see the original on electoral-vote.com)

Just for fun, I decided to see what it would look like showing the candidate totals as a single shared line. keep reading…

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Should you be required to work in Visio, you may well find yourself, as I did, wishing to measure your drawing in pixels. I couldn’t figure out how do do it, though Visio does support such diverse measurements as Ciceros and Didots.

I finally found the definitive answer from Microsoft: For some types of drawings, you may want to change the measurement units to pixels. However, a pixel isn’t a unit of measurement. A pixel is just a dot on a screen and the size of the dot varies for different screens. To simulate pixels, set the measurement units to points.

Needless to say, this is not satisfying. It’s true a pixel is only an on-screen measure, and is clearly only useful for a few, obscure situations, such as when creating interface mockups, wireframes, or prototypes for software, the web, or any other sort of images meant to be viewed on a screen.

Luckily, Visio provides a set of features that allow a fairly simple, two step work-around. Warning: doing this on existing Visio documents may severely distort your existing drawings. I suggest working on duplicate files, not originals. keep reading…

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This is the talk I gave at Ignite Seattle 5, February 19, 2008. The Ignite format requires presenting 20 slides in 5 minutes, with the slides advancing every 15 seconds whether the presenter is ready or not. The original name for this format was “Ask Later.”