Doomsday Clock is a 2017–2019 superhero comic book limited series published by DC Comics, written by Geoff Johns with art by penciller Gary Frank and colorist Brad Anderson. The series concludes a tangential story established in the New 52 and DC Rebirth, and it is a sequel to the 1986–1987 graphic novel Watchmen by Alan Moore, Dave Gibbons and John Higgins, making it the first official crossover between Watchmen and the mainstream DC Universe.

DC Comics Absolute Edition is a series of archival quality printings of graphic novels published by DC Comics and its imprints WildStorm Productions and Vertigo. Each is presented in a hardcover and slipcased edition with cloth bookmark consisting of one or more books which include restored, corrected and recolored versions of the original work, reprinted at 8 by 12 inches. Also included are supplemental materials regarding the creation of the work, including sketches, comic scripts and memos.