book-learned vs retrospective

book-learned

adj
  • Versed in books; having knowledge derived from books. 

retrospective

adj
  • Of, relating to, or contemplating the past. 

  • Affecting or influencing past things; retroactive. 

  • Looking backwards. 

noun
  • An exhibition of works from an extended period of an artist's activity. 

How often have the words book-learned and retrospective occurred in a corpus of books? (source: Google Ngram Viewer )