packaging vs promotion

packaging

noun
  • The manner in which a person or product is promoted. 

  • The industry that produces such material. 

  • The materials used to pack something. 

  • The act of packing something. 

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 packaging and promotion occurred in a corpus of books? (source: Google Ngram Viewer )