catalog vs prospectus

catalog

noun
  • US and Canada spelling of catalogue 

prospectus

noun
  • A booklet or other document giving details of a share offer for the benefit of investors. 

  • A document, distributed to prospective members, investors, buyers, or participants, which describes an institution (such as a university), a publication, or a business and what it has to offer. 

  • A document which describes a proposed endeavor (venture, undertaking), such as a literary work (which one proposes to write). 

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