A work so iconic, it defines the creator. And makes people forget that HeAlsoDid (other works, which you wouldn't believe if you didn't know).

In most cases, authors that create a great work and several lesser-known works can still be associated with all of them. However, if the work is popular enough, it overshadows all other aspects of their career. In extreme cases, the work becomes synonymous with the author's name.

For the actor version, see IAmNotSpock. Compare MagnumOpusDissonance and ToughActToFollow.
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!!Examples:

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[[folder:Comic Books]]
* Creator/AlanMoore and ''ComicBook/{{Watchmen}}''.
* Creator/ScottMcCloud and ''ComicBook/UnderstandingComics''.
* Creator/NeilGaiman and ''ComicBook/TheSandman''.
* Art Spiegelman and ''ComicBook/{{Maus}}''.
[[/folder]]

[[folder:Film]]
* Creator/GeorgeLucas and ''Franchise/StarWars''.
* Creator/QuentinTarantino and ''Film/PulpFiction''.
* Creator/FrancisFordCoppola and ''Film/TheGodfather''.
* Tommy Wiseau and ''Film/TheRoom''.
[[/folder]]

[[folder: Literature]]
* Creator/GeorgeOrwell and ''[[Literature/NineteenEightyFour 1984]].'' Despite being responsible for any number of other exceptional books, the word "Orwellian" forever refers to the totalitarian, oppressive/suppressive government present in ''1984''; evidence for it is [[OrwellianEditor right]] [[OrwellianRetcon here]] on the site. It doesn't help that his second most famous book, ''AnimalFarm'' concerns almost all of the same themes. In Britain, at least, he is remembered, at least to a degree, for his journalism relating to poverty in Britain, such as ''The Road to Wigan Pier.''
* Creator/HPLovecraft is another extreme example; Lovecraftian basically ''means'' CosmicHorrorStory and/or EldritchAbomination.
* To complete the trifecta, Creator/NiccoloMachiavelli's non-fiction essay ''Literature/ThePrince'' has forever ensured that "Machiavellian" will always be a synonym for amoral behavior in the pursuit of absolute power, despite the fact that Machiavelli himself was staunchly pro-republican.
* Creator/OrsonScottCard and ''Literature/EndersGame''. He also wrote a bunch of sequels and several other series.
* Creator/CSLewis and ''Literature/TheChroniclesOfNarnia''.
* Creator/JRRTolkien and ''Literature/TheLordOfTheRings''.
* Creator/DouglasAdams and ''Literature/TheHitchhikersGuideToTheGalaxy''.
* Creator/LFrankBaum and ''Literature/TheWonderfulWizardOfOz''.
* Sir Creator/ArthurConanDoyle and the ''Literature/SherlockHolmes'' stories, reportedly to the author's chagrin.
* Creator/AAMilne and ''Literature/WinnieThePooh''.
* Creator/HermanMelville wrote a whole bunch of books. You probably only know ''Literature/MobyDick''.
* Creator/MaryShelley and ''Literature/{{Frankenstein}}''.
* J.M. Barrie and ''Literature/PeterPan''.
* Joseph Heller and ''Literature/CatchTwentyTwo''.
-->"When I read something saying I've not done anything as good as Catch-22 I'm tempted to reply, 'Who has?'" Joseph Heller
* Creator/LRonHubbard and ''{{Literature/Dianetics}}''. ''Literature/BattlefieldEarth'' runs a close second.
* {{God}} and ''Literature/TheBible''. It'd carry over for all its other authors too, but listing all those would fill up the page.
* CharlesDarwin and ''On The Origin of Species''.
* Creator/TerryPratchett and the ''Literature/{{Discworld}}''.
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[[folder: Live Action Television]]
* Creator/GeneRoddenberry and ''Franchise/StarTrek''.
[[/folder]]

[[folder: Video Games]]
* Creator/HideoKojima and ''VideoGame/MetalGearSolid'', to his annoyance.
* {{Creator/Bungie}}, despite making ground-breaking series such as ''VideoGame/{{Marathon}}'' and ''VideoGame/{{Myth}}'', will forevermore be known as the studio that created the ''{{Franchise/Halo}}'' series.
[[/folder]]
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