Poul Anderson (1926--2001) was an American writer of SpeculativeFiction, who was also involved in the founding of the Society for Creative Anachronism. Apart from Creator/JRRTolkien, probably the writer most involved in [[ShownTheirWork doing the research]] when it came to fantasy. A major source for DungeonsAndDragons.

TheOtherWiki lists [[http://en.wikipedia.org/wiki/Poul_Anderson recurring themes in his work]] as (among others) "[[BigDamnHeroes larger-than-life characters]] who succeed gleefully or fail heroically," [[RockBeatsLaser the folly of underestimating "primitive" cultures]], and "[[GreyAndGrayMorality tragic conflict...with no villains at all]]." His most famous essay is [[http://www.sfwa.org/2005/01/on-thud-and-blunder/ "On Thud and Blunder,"]] where he takes potshots at those who fail to use basic research, or at least common sense when writing HeroicFantasy, and is the TropeNamer for ThudAndBlunder.

!! Works of Poul Anderson having their own pages:
[[index]]
* ''Literature/AfterDoomsday''
* ''Literature/TheBrokenSword''
%% Don't index Dangerous Visions by its contributors.
* [[/index]][[Literature/DangerousVisions "Eutopia"]][[index]]
* ''Literature/TheHighCrusade''
* The ''Literature/{{Hoka}}'' series (with Creator/GordonRDickson)
* ''Literature/AMidsummerTempest''
* ''Literature/OperationChaos''
* ''Literature/TauZero''
* The ''Literature/TechnicHistory'' series, including:
** The Polesotechnic League stories, mostly starring Nicholas van Rijn and David Falkayn, and
** The Terran Empire series, mostly starring Dominic Flandry.
* ''Literature/ThreeHeartsAndThreeLions''
* "Literature/TimeLag"
* ''Literature/TimePatrol''
[[/index]]
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!!His other works provides examples of:
* AmnesiacResonance: "A World Called Maanerek" entirely turns on a character having this.
* TheBeautifulElite: The aliens in ''Sargasso of Lost Starships''
* BettyAndVeronica: Played UpToEleven in ''Sargasso of Lost Starships'', where Helena is attractive and military, and Valduma is inhuman, possessed of great powers, superhumanly beautiful, sadistic, and completely mad.
* BittersweetEnding: Lots.
* BlitheSpirit: Caitlín Mulryan, [[spoiler: the eponymous character]] of ''The Avatar''.
* ButWhatAboutTheAstronauts: ''After Doomsday''
* TheCaptain: Mostly in space
* ColdBloodedTorture: In "A World Called Maanerek"
* CombatPragmatist: Poul Anderson is fond of these characters. In his Wing Alek series of short stories the main character is forbidden from ever using killing to win a conflict (luckily the villains don't know that) so he uses underhanded methods to get the villains to defeat themselves.
* CrazyJealousGuy: In "Holmgang", Johnny's murderer. [[spoiler:Or so he poses as.]]
* CrushBlush: In "Virgin Planet", the hero blushes when the heroines dice to decide who gets him.
* CulturedBadass: In "A Little Knowledge"
* CuriousQualmsOfConscience: Waren in "A World Called Maanerek"
* DamselInDistress: Sonna in "A World Called Maanerek", captured by the dystopia's spaceship
* DearJohnLetter: In the BackStory of "The Corkscrew Of Space"
* DefectorFromDecadence: Horlam in "A World Called Maanerek"
* DidNotGetTheGirl: Common. In "Star Fog" for instance, Laure learns that the ship's crew are no longer able to interbreed with standard humanity, and their compulsive need to have children means he can not marry the one of them he has fallen in love with.
* DirtyBusiness: The aliens' view, in "No Truce with Kings"
* DividedStatesOfAmerica: In "No Truce With Kings"
* DreamingTheTruth: Wanen in "A World Called Maanerek". Or so he is told.
* DuelToTheDeath: In "Holmgang" the plot rises to this.
* {{Dystopia}}: The Hegemony in "A World Called Maanerek"
* DystopiaIsHard: In both "Sam Hall" and "A World Called Maanerek"
* TheFairFolk: Appear in many Anderson stories, often with some kind of twist. Examples include ''The Queen of Air and Darkness''.
* FeminineWomenCanCook: In "Break", a woman, the sole surviving passenger, helps by cooking the meals while the men of the crew frantically work at saving the ship.
* FeudalFuture: Many
** In ''Corridors of Time'', the hero realizes that the futuristic society that recruited him to fight a {{dystopia}} is rather dystopian itself when he is dropped in it and learns that the queen has high tech medical treatment while the poor woman he meets looks ancient at forty because of her lack of it.
** In ''Sargasso of Lost Starships'', Donovan still has local authority despite the conquest because of their feudal loyalties.
* FirstContact: The novelette ''The Enemy Stars'' deals with an accidental First Contact between a human and the aliens that save his life, and the sequel ''The Ways of Love'' deals with how humans handle the first alien beings on Earth (not well, in some cases).
* FlowerMotifs: The aliens loved this in "The Pirate"
* AFriendInNeed: Smit in "A World Called Maanerek". Or so he thinks.
* GodsNeedPrayerBadly: Averted in the short story ''The Food of the Gods''. A being or concept needs some initial worship to achieve Godhood, but after that are relatively self-sustaining. (If a bit hungry . . . )
* GoodPeopleHaveGoodSex: A way of distinguishing the natural and unnatural in "A World Called Maanerek"
* GovernmentDrugEnforcement: IN "A World Called Maanerek", "units" have to take many drugs to fit into their unnatural culture.
* GreyAndGrayMorality
* HistoricalFantasy: ''Mother of Kings'' is based on the Norse sagas with a low-fantastic element.
* HomeSweetHome: Why they stopped looking for Earth in "Gypsy"
* HopeIsScary: In ''After Doomsday'', an alien does not understand this.
* HumanoidAliens
* HumanityIsAdvanced
* HumanPopsicle: Used in "The Burning Bridge" for interstellar colonization.
* IDidWhatIHadToDo: In "The Burning Bridge", the captain fakes a message to persuade them to go on.
* ImAHumanitarian: Central to all of a planet's cultures in "Sharing of Flesh"
* ImmortalProcreationClause: ''A Boat of Million Years'' has fertile immortals. Unfortunately, the children are mortal.
* ImportantHaircut: Threatened in "A World Called Maanerek"
* ImprobablyHighIQ: In "Turning Point," invoked to be averted; it's meaningless to talk of how high an average IQ the planet of geniuses has, because the scale realy doesn't work past 180.
* InnBetweenTheWorlds: The Old Phoenix Tavern, which appears in several works.
* ItWasAGift: Invoked as an excuse in "A Little Knowledge"
* KingInTheMountain: In ''Orion Shall Rise'', the line "Orion shall rise" is used by many citizens of a subjugated land. This trope is invoked to explain their superstition.
* LadyLand: An all-female LostColony is discovered in the novel ''Virgin Planet''.
* LaserGuidedAmnesia: In "A World Called Maanerek"
* TheLeader: ''After Doomsday''
* LonelyTogether: In "Losers' Night", the Old Phoenix, the InnBetweenTheWorlds, has a night where all the guests are failures. Unusually for the inn, this night allows people to magically understand each other -- so they can commiserate.
* LonersAreFreaks: Discussed in "A World Called Maanerek"
* ManlyTears: in "A World Called Maanerek"
* MasterOfYourDomain: A lot of his books e.g. ''Boat of A Million Years''
* MatterOfLifeAndDeath: In "Marque and Reprisal"
* MaybeMagicMaybeMundane: ''The Devil's Game''
* MamasBabyPapasMaybe: In ''The Man Who Counts''
* TheMenFirst: In "Arsenal Port"
* MindOverMatter: In ''Sargasso of Lost Starships''
* MoreHeroThanThou: "Sunjammer" -- they argue about who will do the dangerous part, based on two of them being young but unmarried, and one being married but old
* TheMutiny: In "Break"
* MyGrandsonMyself: In ''The Boat of a Million Years'' several characters do this.
* NiceToTheWaiter: Ganch is repulsed by this in "Inside Straight"
* NonHumanSidekick: "To Build A World"
* NorseMythology: Several of Anderson's novels (e.g. ''War of the Gods'', ''Hrolf Kraki's Saga'') are adaptations of old [[Literature/TheIcelandicSagas Norse sagas]], while several others are loosely based on them (such as ''The Broken Sword'').
* NotAGame: Inverted in "The Un-Man" -- a two-year-old needs to think it's a game to avoid being traumatized.
* OldRetainer: Basil's slave in ''Sargasso of Lost Starships''
* PortalNetwork: In ''The Enemy Stars'' (1958), mankind has maintained a program to deploy a portal network for centuries -- while civilizations rose and fell on Earth -- using STL ships to deliver portals to other solar systems. [[spoiler:Aliens have been doing the same thing.]]
-->... But still the ships fell upward through the night, and always there were men to stand watch upon them. Sometimes the men wore peaked caps and comets, sometimes steel helmets, sometimes decorous gray cowls, eventually blue berets with winged stars; but always they watched the ships, and more and more often as the decades passed they brought their craft to new harbors.\\
After ten generations, the ''Southern Cross'' was not quite halfway to her own goal, though she was the farthest from Earth of any human work.
* {{Privateer}}: ''The Star Fox''
* {{Room 101}}: The story "Sam Hall" opens with the protagonist's nephew being arrested and sent to a Room 101; the protagonist must hide that they were related.
* SacredHospitality: Iason invokes it by name in "Eutopia."
* SecondLove: Proposed but not feasible in "Arsenal Port." In "Admirality" he appears to have recovered enough.
* SherlockScan: In "Queen of Air and Darkness."
* ShroudedInMyth: In ''Virgin Planet'', a planet of women, isolated by accident, has legends of these marvelous beings, men. A real, flesh-and-blood man appears, and they initially conclude he's not marvelous enough and must be an alien.
* SpaceOpera
* SettleForSibling: Or for your dead husband's clone-brother.
* SpeciesLoyalty: Sonna in "A World Called Maanerek" is impressed by the Hegemony's efforts at this until she realizes what they will do to unite humanity.
* StarfishAliens: In ''Starfarers'', one of the sentient species is an intelligent layer of star. Not the whole star, just part of its skin.
* StockholmSyndrome: Wanda reminds herself of this in ''Year of the Ransom''
* TakingTheVeil: The end of "Kyrie", and a plot twist in "The Live Coward"
* TalkingInYourSleep: A danger in "The Burning Bridge" -- the man must become a HumanPopsicle so he will not reveal all
* TalkingToTheDead: Evalyn in "Sharing of the Flesh" -- she fears it shows how disturbed she is.
* TheyCallMeMisterTibbs: In "A Little Knowledge"
* ThickerThanWater:
** In "Say It With Flowers", the main character pleads for news on the grounds that he had a relative on a ship
* {{Telepathy}}: ''Sargasso of Lost Starships'' -- used for psychic attacks.
* TimeTravel: Lots of uses, beside the "Time Patrol" series.
** "My Object All Sublime" features far future people who use it for punishment.
** "Flight to Forever" revolves about a time machine in a universe where you can only move forward.
** "The Man who Came Early" moved back in time after a lighning strike.
* TrappedInThePast: In the short story "The Man Who Came Early", an American soldier stationed in Iceland is sent back to the Viking Era after being hit by lightning.
* TraumaticHaircut: In "A World Called Maanerek", the "tension release" using Sonna starts with her lobotomy—the doctor explains that first they will remove her hair, which will be interesting in itself, since many primitive women are proud of their hair. [[spoiler:Wanen rescues her first.]]
* TwiceToldTale: "Goat Song" is Orpheus
* UnableToSupportAWife: In "A Critique of Impure Reason", he rejects the notion of living off his wife's salary.
* UngovernableGalaxy: His SF stories frequently discuss how difficult it is to govern a planet, let alone more than one.
* UtopiaJustifiesTheMeans: In "A World Called Maanerek", the culture justifies its oppression of "units" and its ruthless expansion with extreme cruelty to the planets it finds on the grounds of spreading itself.
* WellIntentionedExtremist: Korul Wanen in "A World Called Maanerek".
* WhenTreesAttack: An alien forest in ''The Star Fox''
* WouldNotHitAGirl: "To Build A World"
* YouAreInCommandNow: In ''After Doomsday'', the second officer breaks apart when this hits him.
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