advertise vs promote

advertise

verb
  • To provide information about a person or goods and services to influence others. 

  • To give (especially public) notice of (something); to announce publicly. 

  • To provide public information about (a product, service etc.) in order to attract public awareness and increase sales. 

  • In gin rummy, to discard a card of one's preferred suit so as to mislead the opponent into thinking you do not want it. 

promote

verb
  • To advocate or urge on behalf of (something or someone); to attempt to popularize or sell by means of advertising or publicity. 

  • To increase the activity of (a catalyst) by changing its surface structure. 

  • To elevate to a higher league. 

  • To raise (someone) to a more important, responsible, or remunerative job or rank. 

  • To move on to a subsequent stage of education. 

  • To encourage, urge or incite. 

  • To exchange (a pawn) for a queen or other piece when it reaches the eighth rank. 

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