Agatha Christie was a short story writer.
Agatha Christie . She is best known for her 66 detective novels and 14 short story collections , particularly those revolving around her fictional detectives Hercule Poirot and Miss Marple . Christie 's stage play The Mousetrap holds the world record for longest initial run . Most of her books and short stories have been adapted for television , radio , video games and comics , and more than thirty feature films have been based on her work .