5. “And Then There Were None” / Agatha Christie
(Approx. 100 million copies)
In 1940, decades before the term “politically correct” came into the world, the well-known suspense writer Agatha Christie published this book, which is now also known as “And then, there were none,” rather than its original name – “Ten Little Ni****s.” Eight people who arrive on an isolated island find that they start dropping like flies – in a series of mysterious murders. And who is left at the end?