Murder on the Orient Express
by Agatha Christie
Detective Fiction, Murder Mystery
One of the granddaddies of the genre, Murder on the Orient Express helped to define the murder mystery whodunit genre. Agatha Christie was a pro at the formulas and conventions of writing this kind of book, and wrote one after another from 1920 until 1976. You can see her influence in the work of later mystery fiction authors, like Patricia Highsmith and P.D. James.