book-learned vs expert

book-learned

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

expert

adj
  • Characteristic of an expert. 

  • Extraordinarily capable or knowledgeable. 

noun
  • A player ranking just below master. 

  • A person with extensive knowledge or ability in a given subject. 

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