Billy Collins with Agatha Christie.
1924
“Queen of Crime” Agatha Christie joins the house of Collins, and two years later publishes her seminal Hercule Poirot novel, The Murder of Roger Ackroyd. Agatha Christie becomes, and remains, the bestselling novelist of all time. Her books have sold more than a billion copies in the English language and a billion in 100 foreign languages. HarperCollins still publishes Christie today.
