blurb vs spruik

blurb

verb
  • To write or quote in a blurb. 

  • To supply with a blurb. 

noun
  • A short description of a book, film, or other work, written and used for promotional purposes. 

spruik

verb
  • To promote a thing or idea to another person, usually informally. 

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