The Tech for Social Change Baltimore Meetup Message Board › Meeting Logistics, Details, and Notes › 2012 January - Bryan Connor - Data Visualization
Bryan Connor, a freelance user interface and data visualization designer who has had his worked featured by GOOD, talked with us about information visualization.
Data visualization can be used for discovery or communication. Discovery lets you get a feel for the data, while communication tells a story. In both cases, form, data, and message need to work together.
Simple visualizations can be powerful. Don't complicate the data and make it harder to understand.
Bryan walked through several types of charts: bar charts, stacked bar charts, histograms, line graphs, area graphs, horizon graphs, pie charts, enclosure diagrams, treemaps, scatter plots, bubble charts, qualitative matrices, network graphs, sankey diagrams, gantt charts, choropleth maps, graduated symbol maps, and cartograms. You can see examples of these charts in the presentation. (If you need help choosing the correct chart, use this diagram.)
A few tips:
Baltimore has made city data available to the public through OpenBaltimore. You can see the data in use in Spot Agent: Citation Statistics for 2011 and Baltimore Vacants.
Tools and Libraries
Books and Blogs
Slides from this presentation are available online.