Trivia Quesiton: Which of these authors has reportedly sold more books than the other two authors combined?
J. K. Rowling
Answer: Outsold only by the Bible and William Shakespeare, Agatha Christie is the best-selling novelist of all time. She is best known for her 66 detective novels and 14 short story collections. Guinness World Records lists Christie as the best-selling fiction writer of all time, her novels having sold more than two billion copies worldwide. Over a billion copies of her books have been sold in the English language; and another billion have been sold in translation. To put things in perspective, J.K. Rowling, the creator of Harry Potter, has only sold about a quarter as many books as Agatha Christie.
The answer is: Agatha Christie