Data Visualization: Stephen Cartwright

For some further inspiration on data visualization, I came across these works by Stephen Cartwright to be very interesting. His works include a lot of location tracking and topography, such as tracking the locations of his siblings (right) or Cartwright's position on the surface of the earth for every hour of the day (bottom, his Latitude and Longitude project). Here are more of his work: 
http://www.stephencartwright.com/, some of which are currently on display at the Columbus Museum of Art. Some of his works (especially him constantly keeping track of his family's location) did make me wonder the limits of privacy when creating these extremely long-term works. 

- Chloe