"The Gangs of New York: An Informal History of the Underworld" is an American non-fiction book by Herbert Asbury, first published in 1927 by Garden City Publishing Company. The book details the rise and fall of 19th century gangs in New York City, prior to the domination of the Italian-American Mafia during Prohibition in the 1920s. Focusing on the saloon halls, gambling dens, and winding alleys of the Bowery and the Five Points district of Lower Manhattan, the book evokes the destitution and violence of a turbulent era, when colorfully named criminals like "Dandy" Johnny Dolan, William Poole (also known as Bill the Butcher), and Hell-Cat Maggie lurked in the shadows, and infamous gangs including the Plug Uglies, Dead Rabbits, and Bowery Boys ruled the streets. It includes a rogues' gallery of prostitutes, pimps, poisoners, pickpockets, murderers, and thieves. The book contains detailed accounts of the New York City draft riots in 1863. It also elaborates on numerous other criminal influences of the time, including river pirates and the corrupt political establishment such as Tammany Hall. “There has been no volume before Asbury’s devoted exclusively to a history of the New York gangs. . . . Mr. Asbury’s book must be regarded as a distinct contribution to Americana. He has rummaged through old histories and reports and has searched the morgues of newspapers for his contributions. . . . The tale is one of blood, excitement and debauchery.” —The New York Times “Though New York was not an exception among big cities in breeding law-breakers in its slums, the species developed there was marked by distinctive features . . . described with point, gusto, and a sense of proportion.” —The Tines Literary Supplement (London)