Training materials
Authors: James Johnson
and Contributors: Anatole Chessel or Emma Leith or Hadley Wickham or Jean-François Dufayard or Lucille Delisle or Martin Krzywinski
Authors: James Johnson
and Contributors: Anatole Chessel or Emma Leith or Hadley Wickham or Jean-François Dufayard or Lucille Delisle or Martin Krzywinski