The document profiles four influential horror directors: George A. Romero known for his zombie films including Night of the Living Dead; Wes Craven known for slasher films like Scream and A Nightmare on Elm Street; John Carpenter associated with 1970s-80s horror and sci-fi films like Halloween and The Thing; and James Wan famous for directing Saw and creating the puppet Billy. Each director's entry lists some of their notable horror films and provides a brief description of their work in the genre.