Agatha Mary Clarissa, Lady Mallowan, DBE (née Miller; 15 September 1890 – 12 January 1976), commonly known as Agatha Christie, was an English crime writer of novels, short stories and plays. She also wrote romances under the name Mary Westmacott, but is best remembered for her 80 detective novels and her successful West End theatre plays. Her works, particularly featuring detectives Hercule Poirot or Miss Jane Marple, have given her the title the 'Queen of Crime' and made her one of the most important and innovative writers in the development of the genre.

Christie has been called—by the Guinness Book of World Records, among others — the best-selling writer of books of all time and the best-selling writer of any kind, along with William Shakespeare. Only the Bible is known to have outsold her collected sales of roughly four billion copies of novels.[http://www.variety.com/article/VR1117776459.html?categoryid=3&cs=1 Agatha Christie gets a clue for filmmakers - Entertainment News, Michael Fleming, Media - Variety ] UNESCO states that she is currently the most translated individual author in the world with only the collective corporate works of Walt Disney Productions surpassing her. Christie's books have been translated into (at least) 56 languages.

Her stage play, The Mousetrap, holds the record for the longest initial run in the world, opening at the Ambassadors Theatre in London on 25 November 1952, and as of 2008 is still running after more than 23,000 performances. In 1955, Christie was the first recipient of the Mystery Writers of America's highest honor, the Grand Master Award, and in the same year, Witness for the Prosecution was given an Edgar Award by the MWA, for Best Play. Most of her books and short stories have been filmed, some many times over (Murder on the Orient Express, Death on the Nile and 4.50 From Paddington for instance), and many have been adapted for television, radio, video games and comics.

In 1968, Booker Books, a subsidiary of the agri-industrial conglomerate Booker-McConnell, bought a 51% stake in Agatha Christie Limited, the private company that Christie had set up for tax reasons. Booker later increased its stake to 64%. In 1998, Booker sold its shares to Chorion, a company whose portfolio also includes the literary estates of Enid Blyton and Dennis Wheatley.

Biography

Her first marriage, an unhappy one, was in 1914 to Colonel Archibald Christie, an aviator in the Royal Flying Corps. The couple had one daughter, Rosalind Hicks. They divorced in 1928, two years after Agatha discovered her husband was having an affair. It was during this marriage that she published her first novel in 1920, The Mysterious Affair at Styles.