"The Friends of Eddie Coyle" is a crime novel written by George V. Higgins, published in 1972. The story follows Eddie Coyle, a small-time criminal in Boston who becomes an informant to avoid prison time. The narrative explores themes of loyalty, betrayal, and the harsh realities of life in the criminal underworld. The novel is notable for its realistic dialogue and detailed portrayal of the criminal justice system. It has been adapted into a film in 1973, starring Robert Mitchum as Eddie Coyle. The book is often praised for its gritty authenticity and insight into the lives of its characters.