Training materials
Authors: Marek Vrbacky
and Contributors: Armin Fuchs or Celia van Gelder or Dr. Sean I O’Donoghue or Erik Hjerde or Hadley Wickham or Manimozhiyan Arumugam or Marek Suchanek or Marek Vrbacky or Ms. Yo Yehudi or Niclas Jareborg or Nils Peder Willassen