Detective Comics is an
American comic book series published monthly by
DC Comics since 1937, best known for introducing the famous
superhero Batman in
Detective Comics #27 (
cover dated May 1939). It is the source of its publishing company's name and with
Action Comics, the comic book launched with the debut of
Superman, one of the
medium's signature series. With 881 monthly issues published in the first volume, it is the longest continuously published comic book in the United States.