collage vs montage

collage

noun
  • A composite object or collection (abstract or concrete) created by the assemblage of various media; especially for a work of art such as text, film, etc. 

  • A picture made by sticking other pictures onto a surface. 

  • The technique of producing a work of art of this kind. 

verb
  • To make into a collage. 

montage

noun
  • A composite work, particularly an artwork, created by assembling or putting together other elements such as pieces of music, pictures, texts, videos, etc. 

  • The art or process of doing this. 

verb
  • To combine into, or depict as, a montage. 

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