Agatha Christie
Book sales

In her prime, Christie was rarely out of the bestseller list. She was the first crime writer to have 100,000 copies of 10 of her titles published by Penguin on the same day in 1948. As of 2018, Guinness World Records listed Christie as the best-selling fiction writer of all time. As of 2020, her novels had sold more than two billion copies in 44 languages. Half the sales are of English-language editions, and half are translations. According to Index Translationum, as of 2020, she was the most-translated individual author.

Christie is one of the most-borrowed authors in UK libraries. She is also the UK's best-selling spoken-book author. In 2002, 117,696 Christie audiobooks were sold, in comparison to 97,755 for J. K. Rowling, 78,770 for Roald Dahl and 75,841 for J. R. R. Tolkien. In 2015, the Christie estate claimed And Then There Were None was "the best-selling crime novel of all time", with approximately 100 million sales, also making it one of the highest-selling books of all time. More than two million copies of her books were sold in English in 2020.
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