This is a series entitled Grokking the Grammar of Graphics.  Its purpose is to build a framework for a talk of the same name.  Here are the posts in chronological order:

  1. The Grammar of Graphics
  2. Mappings and Geoms
  3. Scales and Coordinates
  4. Labels and Annotations
  5. Themes and Legends
  6. Facets
  7. Cowplot
  8. Radar Love