Cujo is a 1981novel by Stephen King about a rabid St. Bernard Dog[?] who becomes a threat to a trapped mother and her son. The most unusual stylistic element of the book is that it occasionally switches to the perspective of the dog, Cujo. Other than that it is a well-paced thriller with few supernatural elements. It is generally not perceived as King's best work, and at 319 pages (Hardcover Edition by Viking Press[?]) it is one of his shorter ones.