Agatha Christie created two major characters for her stories. Hercule Poirot, a Belgian, used to work in the Police, but by the time of the action he already retired. He can be described as a funny little man taken by many readers as a comic personage. He had a luxurious moustache and he was really proud of it.

Miss Marple was the complete opposite of Poirot. She wasn't a professional and had never been one. She was just an old spinster, very modest but perceptive and not a flamboyant personality, who acted as a detective just by virtue of taking thought.

Agatha Christie's favourite way of murdering was poisoning. She accurately described the process because she had learned a lot about poisons and other chemicals during World War II, while working in a hospital.

The reader has to solve the mystery and decide who the murderer is together with the author. Most of the crimes were committed in some closed surroundings with a limited number of people to suspect. Finally the identity of the murderer is revealed and the reader is hooked and starts looking for another book by Agatha Christie.

Agatha Christie lived between 1890 and 1976. She started writing stories at a very early age, at first to entertain herself. However, she managed to become famous. Not many people know that she used to write under a pen-name of Mary Westmacott. Later, already as a world-known writer, she tried to avoid publicity and stayed out of the public eye.