Agatha Christie is the best-selling novelist of all time. She was born in England in 1890 and went on to write 80 mystery novels and short story collections, as well as several romances, plays, and an autobiography. Her books have sold over 2 billion copies globally and have been translated into over 100 languages. Some of her most famous literary creations include the detectives Miss Marple and Mr. Hercule Poirot. Christie passed away in 1976 at the age of 85, leaving behind an immense literary legacy as the queen of crime fiction.