Selling over 2 billion books worldwide, Agatha Christie is the most successful novelist of all time.
The most successful Christie novel - And Then There Were None - has sold more than 100 million copies, making it the bestselling mystery publication in history.
Yearning to explore her creativity outside crime fiction, Christie also wrote six, semi-autobiographical romance novels under the pseudonym of Mary Westmacott.
Long before she gained worldwide acclaim, Christie's published debut, The Mysterious Affair at Styles, earned her just £25 from the book's publishers upon publication.
Equally adept with scripts, Christie is considered to be the most successful female playwright of all time, with the world's longest-running play -The Mousetrap.
Solidifying Poirot's status as a literary icon, the Belgian sleuth was given a full-page obituary in The New York Times when Christie finally killed him off.