collage vs inset

collage

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

  • 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. 

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

verb
  • To make into a collage. 

inset

noun
  • A smaller thing set into a larger thing, such as a small picture inside a larger one. 

  • A small piece of material used to strengthen a garment. 

  • Anything inserted. 

verb
  • To insert something. 

  • To add an inset to something. 

  • To set in; infix or implant. 

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