Her books are bestseller

One of the interesting facts about Agatha Christie is that her books are bestsellers. Christie's was rarely off the bestseller list when she was at her finest. In 1948, she became the first author of crime fiction to have Penguin publish 100,000 copies of each of her ten books on the same day. As of 2018, Christie was ranked as the all-time best-selling fiction author by Guinness World Records. Her books have sold more than two billion copies in 44 languages as of the year 2020. English-language editions account for 50% of sales, while translations account for 50%.

She is the most translated individual author as of 2020, according to Index Translationum. One of the most often borrowed writers in UK libraries is Christie. She also writes the most popular audiobooks in the UK. The number of audiobooks by Christie that were sold in 2002 was 117,696, as opposed to 97,755 by JK Rowling, 78,770 by Roald Dahl, and 75,841 by JRR Tolkien.

With sales of about $100 million, the Christie estate proclaimed And Then There Were None "the best-selling crime novel of all time" in 2015. It quickly rose to the top of the bestseller list grand. By 2020, more than two million English-language copies of her books had been sold.