30 Comics by Keith Giffen

Comics about the September 11 attacks were published following the terrorist attacks in New York City, Washington DC, and Pennsylvania on September 11, 2001, and cartoonists turned to art to express their grief and support for relief efforts.

52 is a weekly American comic book limited series published by DC Comics that debuted on May 10, 2006, one week after the conclusion of the Infinite Crisis miniseries. The series was written by Geoff Johns, Grant Morrison, Greg Rucka, and Mark Waid, with layouts by Keith Giffen. 52 also led into a few limited series spin-offs.

Ambush Bug is a fictional superhero character who has appeared in several comic books published by DC Comics. His real name is supposedly Irwin Schwab, but he has mental problems that prevent him from truly understanding reality around him, so even his true identity might be no more than a delusion on his part. His origin is disputed, although the most commonly accepted origin is that Brum-El of the planet Schwab sent his clothes from his supposedly doomed planet, hoping that his wardrobe would survive, only to have it intercepted by a giant radioactive space spider. In the resulting crash, only two articles of clothing survived: the Ambush Bug suit, which was subsequently found by Irwin Schwab; and "Argh!Yle!", an argyle sock with a Doctor Doom-like complex, complete with metal mask.

Ambush Bug: Year None is a six-issue comic book limited series written by Keith Giffen and Robert Loren Fleming, and illustrated by Keith Giffen and Al Milgrom. The first issue, "Hey, You Sank My Battle-Ax!", was published on July 23, 2008. DC Comics announced that instead of releasing a sixth issue, the series would skip issue #6 and conclude with issue #7. Ambush Bug: Year None #7 was released on October 28, 2009.

"Annihilation" is a 2006 crossover storyline published by Marvel Comics, highlighting several outer space-related characters in the Marvel Universe. The central miniseries was written by Keith Giffen, with editor Andy Schmidt.

The Authority is a superhero comic book series published by DC Comics under the Wildstorm imprint. It was created in 1999 by Warren Ellis and Bryan Hitch, and follows the adventures of the Authority, a superhero team mainly composed of Ellis-created characters from Stormwatch.

Batman Black and White refers to the comic book limited series published by DC Comics featuring 8-page black and white Batman stories. Vol. 1 and 4 of the series feature all-new stories, while Vol. 2 and 3 contain stories from the back-up feature of the Batman: Gotham Knights comic book.

Countdown, known as Countdown to Final Crisis for its last 24 issues based on the cover, was a comic book limited series published by DC Comics. It debuted on May 9, 2007, directly following the conclusion of the last issue of 52. The series is written primarily by Paul Dini, along with a rotating team of writers and artists.

DC Challenge was a 12-issue comic book limited series produced by DC Comics from November 1985 to October 1986, as a round robin experiment in narrative. The series' tagline was "Can You Solve It Before We Do?"

DC Comics Presents is a comic book series published by DC Comics from 1978 to 1986 which ran for 97 issues and four Annuals. It featured team-ups between Superman and a wide variety of other characters in the DC Universe. A recurring back-up feature "Whatever Happened to...?" had stories revealing the status of various minor and little-used characters.

DC Graphic Novel is a line of graphic novel trade paperbacks published from 1983 to 1986 by DC Comics.

DC Retroactive is a line of one-shot comic book titles published by DC Comics. It revisited periods of the company's main characters: Batman, Superman, Wonder Woman, Green Lantern, the Justice League, and the Flash. These comics were published with cover dates of September and October 2011. The DC Retroactive comic books followed the Flashpoint events and were launched just before The New 52 line wherein DC titles were relaunched starting from #1.

The Defenders are a set of fictional superhero groups with rotating membership appearing in American comic books published by Marvel Comics. They are usually presented as a "non-team" of individualistic "outsiders" who, in their prior adventures, are known for following their own agendas. The team often battle mystic and supernatural threats.

Ghosts is a horror comics anthology series published by DC Comics for 112 issues from September–October 1971 to May 1982. Its tagline was "True Tales of the Weird and Supernatural", changed to "New Tales of the Weird and Supernatural," as of #75, and dropped after #104.

"The Great Darkness Saga" is a five-issue American comic book story arc featuring the Legion of Super-Heroes. It was written by Paul Levitz, with art by Keith Giffen and Larry Mahlstedt. Published by DC Comics in 1982, the arc first appears in Legion of Super-Heroes vol. 2, #290–294. It is notable for featuring appearances by virtually every living past and present Legionnaire as of 1982, as well as most of the team's 30th-century allies, including the Legion of Substitute Heroes, the Wanderers, the Heroes of Lallor, and the 20th-century Kryptonian refugee Dev-Em. The heroes battle an immensely powerful being shrouded in darkness, ultimately revealed to be the ancient ruler of Apokolips, Darkseid.

Heroes Against Hunger is a 1986 all-star benefit comic book for African famine relief and recovery. Published by DC Comics in the form of a "comic jam," or exquisite corpse, the book starred Superman and Batman. Spearheaded by Jim Starlin and Bernie Wrightson, all proceeds from the comic went to hunger relief in Africa.

I Luv Halloween is a horror-comedy original English-language (OEL) manga written by Keith Giffen and illustrated by Benjamin Roman. In North America, Tokyopop released the series in three volumes from October 2005 to September 2007 and re-released it as one volume in October 2008. Menford Electronic Art also adapted it into animated short episodes which premiered on My Space. Set on Halloween, the series focuses on a group of trick-or-treating children and their misadventures.

The Justice League is a team of fictional superheroes appearing in American comic books published by DC Comics. The team was conceived by writer Gardner Fox during the Silver Age of Comic Books as a reimagining of the Golden Age's Justice Society of America. Originally consisting of Superman, Batman, Wonder Woman, The Flash, Green Lantern, Aquaman and Martian Manhunter, they first appeared together as the Justice League of America (JLA) in The Brave and the Bold #28.

Justice League 3000 is a comic book series published by DC Comics. Taking place in the future of the DC Universe as part of The New 52, the series features a 31st century iteration of the Justice League, with new versions of Superman, Batman, Wonder Woman, the Flash, and Green Lantern. The series is written by JM DeMatteis and Keith Giffen and illustrated by Howard Porter. Justice League 3000 began publication in December 2013.

Justice League Europe (JLE) was a comic book series published by DC Comics that was a spin-off of the comic book Justice League America.

Justice League International (JLI) is a DC Comics superhero team written by Keith Giffen and J. M. DeMatteis, with art by Kevin Maguire, created in 1987.

Justice League: Generation Lost was a year-long comic book limited series that premiered July 2010. It ran twice a month for 24 issues, alternating with Brightest Day, which was written by Geoff Johns and Peter Tomasi.

Mister Miracle is a fictional superhero appearing in American comic books published by DC Comics. He first appeared in Mister Miracle #1 and was created by Jack Kirby.

The New 52: Futures End is an eleven-month weekly comic book miniseries, published by DC Comics, that began in May 2014 and ran through April 2015. The series is set five years in The New 52's future, and is written by Brian Azzarello, Keith Giffen, Dan Jurgens, and Jeff Lemire. Covers for the series are drawn by Ryan Sook.

Nick Fury's Howling Commandos was an American comic book series published by Marvel Comics. Running six issues before its cancellation and cover-dated December 2005 to May 2006, the series featured a fictional team set in the Marvel Universe, consisting of supernatural characters employed as a unit of the espionage agency S.H.I.E.L.D..

Reign in Hell is a 2008-2009 comic book miniseries written by Keith Giffen, pencilled by Thomas Derenick, inked by Bill Sienkiewicz and published by DC Comics. The title is a reference to a line spoken by Lucifer in John Milton's epic poem Paradise Lost: "Better to reign in Hell than serve in Heaven."

Scooby Apocalypse is a monthly comic book series published by DC Comics, which began in May 2016. It re-imagines the characters from the Scooby-Doo franchise, particularly the 1969 TV series Scooby-Doo, Where Are You!, setting them in a post-apocalyptic world.

Sugar and Spike is an American comic book series published by DC Comics from 1956 through 1971, named after its main protagonists. The series was created, written, and drawn by Sheldon Mayer.

Super-Villain Team-Up is the name of two American comic book series published by Marvel Comics. Both series featured supervillains as the protagonists.

Trencher is an American comic book series, that was created, written and drawn by Keith Giffen and released by Image Comics in 1993. It totaled only four issues before it ended, with a 5th issue indicated in the end caption, and an ad for a 5th issue in Images of Shadow Hawk #2. However there never was a 5th issue and the next Trencher appearances was in Images of Shadowhawk #1–3 in 1993 also from Image Comics, Trencher X-Mas Bites Holiday Blow-Out in December 1993 and in Blackball Comics #1 in March 1994, both from short-lived UK publisher Blackball Comics. Giffen illustrated this in a sort of twisted ligne Claire style with some hyper-detailed elements of Geoff Darrow. All stories are ultraviolent and a parody of the then prevalent "Image Comics style".