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The design and development of visualization systems has been an essential part of my activities over twenty years. I have an affinity for OS X and Python.
bio from Twitter
24th–28th June 2015
14th–19th October 2013
13th–21st March 2013
29th October to 3rd November 2012
11th–15th June 2012
See Josef Heinen's full speaking history
3 events spoken at
8 events attended
2015 · 2013 · 2012 · 2011 · 2010 · 2009
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