According to Wikipedia: "Ed McBain was an American author and screenwriter. Born Salvatore Albert Lombino, he legally adopted the name Evan Hunter in 1952. While successful and well known as Evan Hunter, he was even better known as Ed McBain, a name he used for most of his crime fiction, beginning in 1956. He also used the pen names John Abbott, Curt Cannon, Hunt Collins, Ezra Hannon, and Richard Marsten, amongst others. His 87th Precinct novels have become staples of the police procedural genre."