Training materials
Authors: Brane Leskosek
and Contributors: Andrea Argentini or Anton Nekrutenko or Anup Kumar or Dr. Simon Tomlinson or John "Scooter" Morris or Marek Vrbacky or Martin Krzywinski or Mateusz Kuzak or Mr. William Edward Hill or Patricia Palagi or Portada: Enrique Sahagún or Prof. Tom Freeman