mass media vs publishing

mass media

noun
  • Collectively, the communications media, especially television, radio, and newspapers, that reach the mass of the people. 

publishing

noun
  • The industry of publishing, including the production and distribution of books, magazines, web sites, newspapers, etc. 

  • Something published; a publication. 

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