Training materials
Authors: Elisa Michon
and Contributors: Björn Grüning or Celia van Gelder or Dr. Konstantinos Sidiropoulos or Dr. Martin Graham or Hadley Wickham or Manimozhiyan Arumugam or Marek Vrbacky or Ms. Yo Yehudi or Nate Coraor or Nils Peder Willassen or Prof. Richard Baldock or Yvan Le Bras