This website gives an overview of the author Agatha Christie, the detective Hercule Poirot, and the nine works, including: The Mysterious Affair at Styles, The Murder of Roger Ackroyd, Murder on the Orient Express, The ABC Murders, Cards on the Table, Death on the Nile, And Then There Were None, Five Little Pigs, and Curtain. On the interpretation page, there is a list of murderers (for each book) and a description of the reason why they committed the murder. Further down, I grouped all novels that have similar motives and I analyzed the differences and similarities among them.