nonfiction vs poetry

nonfiction

noun
  • Written works intended to give facts, or true accounts of real things and events. Often used attributively. 

poetry

noun
  • Literature composed in verse or language exhibiting conscious attention to patterns and rhythm. 

  • A poet's literary production. 

  • An artistic quality that appeals to or evokes the emotions, in any medium; something having such a quality. 

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