scenario vs sketchbook

scenario

noun
  • An outline of the plot of a dramatic or literary work. 

  • An outline or model of an expected or supposed sequence of events. 

  • A screenplay itself, or an outline or a treatment of it. 

sketchbook

noun
  • A book of printed sketches. 

  • A book or pad with blank pages for sketching; a sketch pad. 

How often have the words scenario and sketchbook occurred in a corpus of books? (source: Google Ngram Viewer )