agenda vs notebook

agenda

noun
  • A notebook used to organize and maintain such plans or lists, an agenda book, an agenda planner. 

  • A list of matters to be taken up (as at a meeting). 

  • A temporally organized plan for matters to be attended to. 

  • An ulterior motive. 

notebook

noun
  • A book in which notes or memoranda are written. 

  • A kind of user interface in literate programming, allowing calculations to be interspersed with human-readable comments, diagrams, etc. 

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