Training materials
Authors: Brane Leskosek or Pavel Dvorak or Teresa Attwood
and Contributors: Alex Botzki or Anatole Chessel or Björn Grüning or Celia van Gelder or Hana Pergl Sustkova or Jamie Edwards or Manimozhiyan Arumugam or Marek Vrbacky or Michael Krone or Vicky Schneider