author vs poet

author

noun
  • Someone who writes books for a living. 

  • The originator or creator of a work, especially of a literary composition. 

verb
  • To create a work as its author. 

poet

noun
  • A person who writes poems. 

  • A person with a creative or romantic imagination. 

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