Dame Agatha Christie, 1974 (aged 83), taken two years before her passing.
The Guinness Book of World Records lists Christie as the best-selling novelist of all time. Her novels have sold roughly 2 billion copies, and her estate claims that her works come third in the rankings of the world’s most-widely published books, behind only Shakespeare’s works and the Bible. According to Index Translationum, she remains the most-translated individual author – having been translated into at least 103 languages. ‘And Then There Were’ None is Christie’s best-selling novel, with 100 million sales to date, making it the world’s best-selling mystery ever, and one of the best-selling books of all time.
Photo: Lord Snowdon (Once married to Princess Margaret).