cicerone vs director

cicerone

noun
  • A guide who accompanies visitors and sightseers to museums, galleries, etc., and explains matters of archaeological, antiquarian, historic or artistic interest.. 

director

noun
  • A counselor, confessor, or spiritual guide. 

  • A device that displays graphical information concerning the targets of a weapons system in real time. 

  • The common axis of symmetry of the molecules of a liquid crystal. 

  • A member of a board of directors. 

  • That which directs or orientates something. 

  • One who directs; the person in charge of managing a department or directorate (e.g., director of engineering), project, or production (as in a show or film, e.g., film director). 

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