Training materials
Authors: F. Abascal, J. Aguirre, E. Andrés-León, D. Baji...
and Contributors: Andrea Argentini or Dr. Simon Tomlinson or Hadley Wickham or John "Scooter" Morris or Martin Krzywinski or Mateusz Kuzak or Oliver Davis or Patricia Palagi or Portada: Enrique Sahagún or Prof. Tom Freeman or Rafael C Jimenez or Subina Mehta