Below is a selection of recent talks.
(More recent slides may use progressive build, which is lost in the pdf)

• Plot and Look! Trust your Data more than your Models!
  
       Talk and demonstration at the anual meeting of the Dutch Chemometrics Society 2010
  
  
• Statistical Graphics! Who needs Visual Analytics?
  
       Keynote Presentation at the useR! 2009 conference in Rennes
  
  
• Datenanalyse mit Interaktiven Grafiken
  
       Presentation given at the German Census Office (in german) in Wiesbaden 2009
  
  
• Mondrian
  
       A more recent talk on Mondrian at the VisMaster workshop in Paris 2008
  
  
• Problems solved in InfoVis?
  
       "Capstone" at the InfoVis Seminar in Dagstuhl 2007
  
  
• Computational Statistics / Statistical Computing
  
       Joint Keynote with Fritz Leisch at the annual CompStat meeting at the Reisensburg 2006
  
  
• Interactive Graphics for Statistics: Principles & Example
  
       "Farewell" talk at the Stats department in Augsburg 2006
  
  
• TWIX
  
       A more up-to-date talk on TWIX, given at the 3rd Ensemble Workshop in Munich 2006
  
  
• Interactive Statistical Analysis of Geographically referenced Data
  
       Invited talk at the 2005 JSM in Minneapolis
  
  
• Interactive Statistical Graphics: Design, Application and Implementation
  
       Three talks given at the 5th Workshop on "Modern statistical visualization and related topics"
       in Tokyo (March 2005)
  
  
• TWIX
  
       Talk at the internal seminar week of the Augsburg stats department in Sion 2005
       on "exhaustive tree ensembles"
  
  
• 1001 Graphics
  
       Talk on better defaults in statistical graphics, presented at 2004 CompStat in Prague
  
  
• JGR: a unified interface to R
  
       Presented at useR! conference in Vienna 2004
  
  
• Navigating Data - Selections Scales Multiples
  
       Presented at 10th HCI in Crete 2003
  
  
• Upscaling Statistical Graphics
  
       Presented at the DataVis III workshop in Augsburg 2002
   
  
• Statistical Data Exploration and Geographical Information Visualization
  
       Presented at the ICA workshop in London 2002
   
  
• Mondrian - Interactive Statistical Graphics in JAVA
  
       Talk at the 2002 stat-computing meeting at the Reisensburg (Germany) 
  
  
• Selecting Among Categories
  
       Short presentation at the 2002 JSM meeting in NYC on how to work on databases in interactive graphics. 
  
  
• What you always wanted to know about Data Mining, but ...
  
       Talk at the internal seminar week of the Augsburg stats department in Sion 2002
       (this is my ``mission statement'') 
  
  
• User Interfaces of Interactive Statistical Graphics Software
  
       Presented at the 1999 Interface in Chicago 
  
  
• Visualizing Categorical Data
  
       Presented at the 1998 JSM in Dallas
       (though you might have seen me giving a similar talk at some other place ;-)