I run Data to Insight, a data visualization consulting and training enterprise, and teach spatial analysis at University of Maryland Baltimore County, in Shady Grove Maryland, USA. From 1989 to 2010 I was a research scientist at the U.S. Geological Survey in Reston VA where I used GIS and applied statistics to understand landscape dynamics and the health of regions and their inhabitants. I have published on the geography of public health, land processes, spatial complexity, and urbanization in Africa. I have had full-time appointments at the Universities of Ibadan, Nigeria and Vermont. He also volunteers teaching data visualization at local elementary schools, plays the recorder and enjoys flatwater kayaking.