edition vs printer's reader

edition

noun
  • An instance of [1] or [2] 

  • A written work edited and published, as by a certain editor or in a certain manner, or at a certain time. 

  • A particular instance of an event. 

  • The whole number of copies of a work printed and published at one time. 

printer's reader

noun
  • Synonym of proofreader 

How often have the words edition and printer's reader occurred in a corpus of books? (source: Google Ngram Viewer )