Watchmen is a seminal graphic novel by Alan Moore and Dave Gibbons. Set in an alternate version of the United States where superheroes exist, the story explores themes of power, morality, and the nature of heroism. Watchmen is known for its intricate plot, complex characters, and deconstruction of the superhero genre. It has been widely praised for its literary and artistic merits, and its impact on the medium of comics cannot be overstated.