What comic book publisher first published  "The Button", a 2017 comic book crossover and published "Doomsday Clock" an upcoming superhero comic book limited series?
Doomsday Clock (comics) Doomsday Clock is an upcoming superhero comic book limited series published by DC Comics. The series is being written by DC's chief creative officer Geoff Johns with art from penciller Gary Frank and colorist Brad Anderson.
Batman (comic book) Batman is an ongoing American comic book series featuring the DC Comics superhero, Batman, as the main protagonist. The character first appeared in "Detective Comics" #27 (cover dated May 1939). Batman proved to be so popular that a self-titled ongoing comic book series began publication with a cover date of Spring 1940. It was first advertised in early April 1940, one month after the first appearance of his new sidekick, Robin, the Boy Wonder.