affiche vs promotion

affiche

noun
  • A written or printed notice to be posted, as on a wall; a poster; a placard. 

verb
  • To fix, fasten; to fix a poster or placard to a wall. 

  • To parade, to advertise, publicise; to display, show. 

promotion

noun
  • An event intended to increase the reach or image of a product or brand. 

  • Transformation of a pawn into a piece (by reaching the opponent's back rank). 

  • Dissemination of information in order to increase its popularity. 

  • Forward motion. (Contrast remotion.) 

  • An advancement in rank or position. 

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