Let’s Talk About Dials

<p>When it comes to designing dashboards for web applications, people often turn to
dials as a way of representing a single data point that fluctuates over time.
Think of a speedometer in a car.</p>

<p><img alt="Speedometer" src="http://images.thoughtbot.com/dials/speedometer.jpg"></p>

<p>It’s easy to glance down and get the current speed on…</p>

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Analyzing Minard’s Visualization Of Napoleon’s 1812 March

<p>In <a href="http://www.edwardtufte.com/tufte/books_vdqi"><em>The Visual Display of Quantitative Information</em></a>,
Edward Tufte calls <a href="http://www.edwardtufte.com/tufte/minard">Minard’s graphic of Napoleon in Russia</a> one of the “best statistical drawings ever created.” But what makes it so good?</p>

<p>Before we analyze this graphic, we need to know a bit of history…</p>

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