Detective Comics
Detective Comics is an American comic book series published by DC Comics. The first volume, published from 1937 to 2011 (and later continued in 2016), is best known for introducing the superhero Batman in "Detective Comics" #27 (cover dated May 1939).
John Wagner
Wagner and Grant became part of the so-called "British Invasion" of American comics during the 1980s. In 1987 their first title, a mini-series called "Outcasts", was published by DC Comics with Cam Kennedy as artist. "Outcasts" was well received, though it never sold in great quantities, and this success led to the pair writing Batman in the pages of "Detective Comics" from issue 583, largely with Norm Breyfogle on art duties. Grant and Wagner introduced the Ventriloquist in their first Batman story and the Ratcatcher in their third. The pair also created the bleak nuclear dystopia "The Last American" for Epic Comics with longtime Dredd artist Mike McMahon. Arguments over the direction of that title and the ending of the Judge Dredd story "Oz" led to the end of their writing partnership and they split their work between them: Wagner kept "Judge Dredd", while Grant continued "Strontium Dog" and "Anderson, Psi Division" and became the sole writer of "Detective Comics". Although the two continue to collaborate from time to time, they have never resumed a full-time partnership.