Well, I am WAY late to this party. My mom, sister, and maternal grandparents all loved Agatha Christie when I was a young lad in the 80s.
Just for the heck of it,
I looked her up on Wikipedia.
Those are some impressive stats!
- Bestselling author of any kind, alongside Shakespeare. Outsold only by the bible! (roughly 4 billion copies!)
- Translated into at least 56 languages
- Wrote 80 detective novels, along with plays & short stories
J.K. Rowling has a ways to go before she can hope to catch up! I personally don't think she'll have the staying power of Christie.