Keith Giffen has written at least 86 books. Their most popular book is Battle Royale, Vol. 9 with 285 saves with an average rating of 4.01⭐.
They are best known for writing in the genres Fantasy, Adventure, and Science fiction.
dark, tense, and Adventurous are their most common moods.
 Thanos (2003-2004) #7 Thanos (2003-2004) #7
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Thanos (2003-2004) #9 Thanos (2003-2004) #9
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 Thanos (2003-2004) #10 Thanos (2003-2004) #10
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Thanos (2003-2004) #8 Thanos (2003-2004) #8
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Thanos (2003-2004) #12 Thanos (2003-2004) #12
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 Thanos (2003-2004) #11 Thanos (2003-2004) #11
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 Marvel Monsters
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 He-Man and the Masters of the Universe 3
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 He-Man and the Masters of the Universe, Vol. 2: Origins of Eternia
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 Scooby Apocalypse, Vol. 1 Scooby Apocalypse, Vol. 1
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 Lovecraft
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 Lobo by Keith Giffen & Alan Grant, Vol. 2
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 Trencher
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 JSA by Geoff Johns Book Four
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 Jeremiah Harm Jeremiah Harm
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Justice League Europe (1989-1993) #26 Justice League Europe (1989-1993) #26
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 Legionnaires 3 (1986) #3 Legionnaires 3 (1986) #3
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Legionnaires 3 (1986) #2 Legionnaires 3 (1986) #2
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Legionnaires 3 (1986) #1 Legionnaires 3 (1986) #1
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Secret Origins (1986-1990) #32 Secret Origins (1986-1990) #32
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 Secret Origins (1986-1990) #18 Secret Origins (1986-1990) #18
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Secret Origins (1986-1990) #34 Secret Origins (1986-1990) #34
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 DC Through the 80s: The Experiments
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 DC Comics Presents: Lobo
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 Ragman (Volume 2) Issues 1-8
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 Showcase Presents: Ambush Bug, Vol. 1
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Marvel Romance Redux Marvel Romance Redux: I Should Have Been A Blonde
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 Lobo's Greatest Hits
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 Midnighter, Volume 3: Assassin8
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Savage Dragon Savage Dragon: Team-Ups
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DC Retroactive Justice League America The 90s #1 DC Retroactive Justice League America The 90s #1
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Legion of Super-heroes - Five Years Later Omnibus 1 Legion of Super-heroes - Five Years Later Omnibus 1
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 TAG: Deluxe Edition
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 TALENT: Deluxe Edition
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 Das DC-Universum vs. Masters of the Universe
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 He-Man und die Masters of the Universe, Band 2 - Legenden von Eternia
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 Anihilarea Anihilarea
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 Reign in Hell (2008-) #6
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 Convergence: Supergirl: Matrix (2015-) #1
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 Invasion!
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 Auntie Agatha's Home for Wayward Rabbits Volume 1
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 Justice League 3001, Vol. 1
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 Annihilation Book 1
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