Agatha Christie: An Autobiography

by Agatha Christie

Of course, there is a right length for everything. I think myself that the right length for a detective story is 50,000 words. I know this is considered by publishers as too short. Possibly readers feel themselves cheated if they pay their money and only get 50,000 words–so 60,000 Or 70,000 are more acceptable. If your book runs to more than that I think you will usually find that it would have been better if it had been shorter. 20,000 words for a long short story is an excellent length for a thriller. Unfortunately there is less and less market for stories of that size, and the authors tend not to be particularly well paid. One feels therefore that one would do better to continue the story, and expand it to a full-length novel. The short story technique, I think, is not really suited to the detective story at all. A thriller, possibly–but a detective story no.