charlatan vs trickster

charlatan

noun
  • A malicious trickster; a fake person, especially one who deceives for personal profit. 

trickster

noun
  • A fraud (person who performs a trick for the purpose of unlawful gain). 

  • One who plays tricks or pranks on others. 

  • Any of numerous figures featuring in various mythologies and folk traditions, who use guile and secret knowledge to challenge authority and play tricks and pranks on others; any similar figure in literature. 

  • One who performs tricks (parts of a magician' act or entertaining difficult physical actions). 

  • An impish or playful person. 

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