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).
Superman (comic book)
"Superman" was the first DC title with a letters column as a regular feature beginning with issue #124 (September 1958). In the view of comics historian Les Daniels, artist Curt Swan became the definitive artist of Superman in the early 1960s with a "new look" to the character that replaced Wayne Boring's version. Writer Jim Shooter and Swan crafted the story "Superman's Race With the Flash!" in "Superman" #199 (Aug. 1967) which featured the first race between the Flash and Superman, two characters known for their super-speed powers.