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.
World War III (DC Comics) World War III is the title of two comic book sagas published by DC Comics and involving many of the superheroes of the DC Universe. The first was published in 2000 as a story-arc in the "JLA" ongoing series; the second was published in 2007 as a limited series of its own.