Ellery Queen is a pseudonym used by Frederick Dannay, Manfred B. Lee, Jack Vance, and others to write detective fiction.
In their successful series of novels, Ellery Queen is not only the name of the author, but also the detective-hero of the stories.
The early Queen novels encouraged the reader to attempt to solve the puzzle, with an explicit note in the text when the reader had all the necessary information.
Three novels featuring the governor's "troubleshooter" Mike McCall -- The Campus Murders (1969, written by Gil Brewer); The Black Hearts Murder (1970, written by Richard Deming); and The Blue Movie Murders (1972, written by Edward D. Hoch) -- were also published under the "Ellery Queen" byline.