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Agatha Christie

Agatha Christie was an English detective novelist and playwright, widely regarded as the “Queen of Crime” or “Queen of Mysteries.” She is best known for creating Hercule Poirot and Miss Marple, and for writing *The Mousetrap*, the world’s longest-running play.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Agatha Christie was an English detective novelist and playwright, widely regarded as the “Queen of Crime” or “Queen of Mysteries.” She is best known for creating Hercule Poirot and Miss Marple, and for writing *The Mousetrap*, the world’s longest-running play.

Life and career

Agatha Christie was born in Torquay in 1890 and became one of the most successful authors in modern literature. She worked as a nurse during the First World War and later built a long career writing novels, short stories, and plays.

Major works

Christie’s detective fiction includes *The Mysterious Affair at Styles*, which introduced Hercule Poirot, and *Murder at the Vicarage*, which introduced Miss Marple. Her plays include *The Mousetrap* and *Witness for the Prosecution*.

Writing style and reputation

Christie is closely associated with classic mystery and detective fiction, and many sources describe her as the “Queen of Mysteries” or “Queen of Crime.” Her popularity and influence have made her one of the most widely read authors in history.

Personal life

Christie married Archibald Christie in 1914 and later married archaeologist Max Mallowan in 1930. She died in Wallingford, Oxfordshire, in 1976.

Canada

Christie’s novels have long been widely read in Canada, and her works remain part of mainstream English-language crime fiction referenced in Canadian publishing, libraries, theatre, and television programming.

Key facts

  • Agatha Christie wrote 66 detective novels and 14 short story collections.
  • Her books have sold more than a billion copies in English and a billion in translation.
  • She is widely described as the best-selling novelist of all time.
  • Her most famous fictional detectives are Hercule Poirot and Miss Marple.
  • *The Mousetrap* is credited as the world’s longest-running play.
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Canadian context

Christie’s novels have long been widely read in Canada, and her works remain part of mainstream English-language crime fiction referenced in Canadian publishing, libraries, theatre, and television programming.

Frequently asked questions

Who was Agatha Christie?
Agatha Christie was an English novelist and playwright best known for detective fiction and for creating Hercule Poirot and Miss Marple.
What is Agatha Christie most famous for?
She is most famous for her mystery novels, especially those featuring Poirot and Miss Marple, and for *The Mousetrap*.
How many books did Agatha Christie write?
Sources differ slightly, but she wrote about 75 novels overall, including 66 detective novels, plus short story collections and plays.
What was Agatha Christie’s first novel?
Her first published novel was *The Mysterious Affair at Styles* (1920), which introduced Hercule Poirot.
When was Agatha Christie born and when did she die?
She was born on 15 September 1890 and died on 12 January 1976.
Why is Agatha Christie important?
She is one of the most successful and influential writers in detective fiction and is among the best-selling authors of all time.

References

  1. Agatha Christie Limitedhttps://www.agathachristie.com/about-christie
    Supports: Birthplace; best-selling novelist claim; 66 detective novels; 14 short story collections; The Mousetrap; sales figures.
  2. Encyclopaedia Britannicahttps://www.britannica.com/biography/Agatha-Christie
    Supports: Biographical details; English detective novelist and playwright; Queen of Mysteries; dates; overall reputation.
  3. History.co.ukhttps://www.history.co.uk/biographies/agatha-christie
    Supports: Poirot and Miss Marple; school background; damehood; death information.
  4. Britannica Kidshttps://kids.britannica.com/students/article/Agatha-Christie/273660
    Supports: First novel; Poirot and Miss Marple introductions; The Mousetrap; marriage and death dates.
  5. Encyclopedia.comhttps://www.encyclopedia.com/people/history/historians-miscellaneous-biographies/agatha-christie
    Supports: Nationality; genre; major works; play count; bestseller status.