copying vs photography

copying

noun
  • the practice of making one or more copies 

  • an instance of the making of a copy 

photography

noun
  • The occupation of taking (and often printing) photographs. 

  • The art and technology of producing images on photosensitive surfaces, and its digital counterpart. 

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