ABCs vs pictograph

ABCs

noun
  • The alphabet. 

  • The alphabet, especially the English alphabet. 

  • Letters; writing; the skill of literacy. 

pictograph

noun
  • A picture that represents a word or an idea. 

  • A graphic character. 

  • A graph that represents numerical data using pictures. 

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