Back in 2004, Edward Tufte defined and developed the concept of a “sparkline”. Odds are good that — if you’re reading this — you’re familiar with them and how popular they’ve become.
What’s interesting is that over 20 years before sparklines came on the scene, Tufte developed a different type of data visualization that didn’t fare nearly as well. To date, in fact, I’ve only been able to find three examples of it, and even they aren’t completely in line with his vision.
It’s curious that it hasn’t become more popular, as the chart type is quite elegant and aligns with all of Tufte’s best practices for data visualization, and was created by the master of information design. Why haven’t these charts (christened “slopegraphs” by Tufte about a month ago) taken off the way sparklines did?

Being a relatively new city that has grown drastically over recent decades and is entrenched in modern planning practices, we can clearly see and experience “beliefs made physical” and its effects. These can be felt at all levels of the built environment - from the location and style of individual buildings (such as City Hall) to large-scale urban patterns.

This graphic speaks to the latter, compiling several census-based maps, graphs, and tables to explicitly show the direct ties between specific  policies, neighbourhood densities and population distribution.