interior designer vs shaper

interior designer

noun
  • A home decor designer; a person in the business of interior design. 

shaper

noun
  • A person who designs and builds surfboards. 

  • One who shapes. 

  • A machine tool in which a single-point cutting tool mounted on a reciprocating ram is traversed across the workpiece linearly. Shapers can generate various shapes, but were most especially employed in generating flat surfaces and keyways. The shaper is nowadays obsolescent, most of its applications being served by milling machines. 

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