Communism vs Maoism

Communism

noun
  • The ideology of political parties that use the term Communist in their names, usually Marxist and Leninist. 

  • A state of affairs perceived as oppressive, overly arbitrary, or totalitarian. 

  • The socio-economic system based on such parties' ideologies. 

Maoism

noun
  • The philosophy espoused by Chinese leader Mao Zedong, a form of Marxism-Leninism that focuses on the peasantry as the revolutionary vanguard. 

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