Recent Posts

Overlaying a bubble chart onto a Google map

25 minute read , Posted on May 04, 2012, by Carl V. Lewis

Others may hate, but I’m a big fan of using bubbles to display data. When implemented correctly (i.e. scaled in terms of area instead of diameter), bubbles can be an aesthetically appealing and concise way to represent the value of data points in an inherently visual format. Bubbles are even more useful when they include interactivity, with events like mouseover and zoom allowing users to drill down and compare similar-sized bubbles more easily than they...

Why calculus matters when it comes to data-driven stories

7 minute read , Posted on April 17, 2012, by Carl V. Lewis

A quick refresher from my data visualization professor here at Columbia a couple of weeks ago reminded me why I was forced to spend all those grueling hours calculating standard deviation back in high school.

What makes “the world’s best designed website”

16 minute read , Posted on April 16, 2012, by Carl V. Lewis

With the Pulitzer Price announcements coming up later this afternoon, you’d think I’d be writing about whose up for the “Best Deadline Reporting” or “Best Public Service Journalism” prizes. But instead I want to talk about a different media award doled out during the past week:’s designation as the “world’s best designed website” by the Society for News Design. Put simply, I can’t say I disagree.