reporter vs reviewer

reporter

noun
  • A journalist who investigates, edits and reports news stories for newspapers, radio and television. 

  • A person who records and issues official reports of judicial or legislative proceedings. 

  • A gene attached by a researcher to a regulatory sequence of another gene of interest, typically used as an indication of whether a certain gene has been taken up by or expressed in the cell or organism population. 

  • A case reporter; a bound volume of printed legal opinions from a particular jurisdiction. 

  • Someone or something that reports. 

reviewer

noun
  • A person who writes reviews for a newspaper or other publication; a critic. 

  • An inspector. 

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