storybook vs tome

storybook

noun
  • A book containing stories, especially children's stories. 

adj
  • As in a story for children; pleasant and idealized, or having a happy conclusion. 

tome

noun
  • A large or scholarly book. 

  • One in a series of volumes. 

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