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[[quoteright:290:https://static.tvtropes.org/pmwiki/pub/images/book_monster_colored2_7012.jpg]]
[-[[caption-width-right:290:Image by Hawanja.\\
Used with permission.]]-]

->''"Oh, I get it. It's a book of '''biting satire.'''"''
-->-- '''Creator/MikeNelson''', Podcast/RiffTrax of ''Film/HarryPotterAndThePrisonerOfAzkaban'', regarding ''The Monster Book of Monsters''

Sometimes, due to various circumstances (generally involving magic), books may end up with a tendency to get... {{animate|InanimateObject}}. They're often evil or hostile, but they don't have to be: often they just show a mischievous sense of humor -- moving about at random, running away from grasping hands, floating, knocking objects off tables, etc. And yes, sometimes ''Literature/MobyDick'' has molars or ''Literature/FinnegansWake'' gets fangy... but that's a sorcerer's library for you. Watch your fingers.

Subtrope of AnimateInanimateObject. See also DeadlyBook, when reading a book's contents can kill. For a magical book whose contents are old and dangerous, see TomeOfEldritchLore. Contrast LiteralBookworm, for something that bites into books. For a hostile creature camouflaged as a harmless book, see ChestMonster.
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!!Examples:

[[foldercontrol]]

[[folder:Anime & Manga]]
* ''VideoGame/LapisReLights'' has the library of Flora Girls Academy, where it's shown that the animate, aggressive tomes are mixed in with the regular books. There doesn't seem to be any safety measures nor warning until one chomps down on your hand for handling it wrong.
* The Book of Darkness in ''Anime/MagicalGirlLyricalNanohaAs'', which was shown in [[AudioAdaptation the Second Sound Stage]] and the [[ComicBookAdaptation fifth chapter of the supplementary comic]] to act like a floating puppy around Hayate.
* As [[ButtMonkey Reisen]] learned in the ''Franchise/TouhouProject'' [[ComicBookAdaptation spin-off manga]], ''[[Manga/TouhouBougetsushou Inaba of the Moon and Inaba of the Earth]]'', when [[MagicLibrarian Patchouli]] tells you not to touch certain books, '''don't touch them'''. They bite, and the bigger biting ones have a taste for meat.
[[/folder]]

[[folder:Comic Strips]]
* One ''ComicStrip/CalvinAndHobbes'' had Calvin's book suddenly come to life and [[ADogAteMyHomework eat his homework]] before attacking him and forcing him to break its spine to save himself. Or at least that was the reason he gave Miss Wormwood for why his homework wasn't done, complete with said broken-spine book as "evidence".
[[/folder]]

[[folder:Fan Works]]
* In ''Fanfic/{{A New World|IcedFairy}}'', the books in the Scarlet Devil Mansion library have been heavily enchanted for a wide array of defensive purposes. It has been a long time since anyone was sure of how many layers of protection have been placed over the books, so when a band of unwary invaders is lured into the library and the books triggered to attack, they wind up unleashing a maelstrom of every kind of magic available.
* In Creator/AAPessimal's take on the Literature/{{Discworld}}, Assassin Johanna Smith-Rhodes puts on a little demonstration for the grimoires that her husband Ponder Stibbons keeps in his study. After her youngest daughter takes an interest in the magical books [[note]]She couldn't care less about the magic; she's an artist and is fascinated by things like the ornate dropped caps and the marginal illustrations[[/note]] Johanna shows them a book and a box of matches. She then tears out pages, one by one, sets them on fire and drops the ashes in the bin. The point having been made, she nods at the intently watching grimoires and walks out again. Later, a [[MotherRussiaMakesYouStrong visiting witch]], aware the books are testing her out, draws her short but very sharp Cossack knife, and subjects an otherwise blameless City Watch memo to the death of a thousand cuts. She points out to the grimoires that ''whatever'' magic they contain, they are still only made of paper and she keeps her blades very sharp.
[[/folder]]

[[folder:Film -- Live-Action]]
* One of the fake Necronomicons bites Ash's hand in the graveyard scene in ''Film/ArmyOfDarkness''.
[[/folder]]

[[folder:Literature]]
* According to Creator/DaveBarry, every year a taxpayer is randomly chosen for an audit and thrown into the room containing the US tax code and the door hastily shut. There's some screaming and burping noises, and the next day the tax code is just a little thicker.
* Children's book ''The Book That Eats People'' claims to be ExactlyWhatItSaysOnTheTin.
* ''Franchise/CthulhuMythos'': While this didn't originally apply to the Necronomicon, it's a common trait in adaptations. What better way to advertise a TomeOfEldritchLore than having it possibly kill you before you even read it?
* ''Literature/{{Discworld}}'': The magic books inside the Unseen University's Library have to be chained to their shelves. ''Literature/{{Sourcery}}'' describes a few of the books. The Necrotelicomnocon is bound in iron plates, the Guide to Levitation has been floating in the rafters for about a hundred and fifty years, and the ''Booke of Forbidden Sex Majyk'' is kept in a deep-frozen room and should only be read if you are over the age of 80 and, if possible, dead.
** To make matters worse, the books, apart from a fair number of them being able to rip the skin from your bones, they can ''read'' each other and ''learn methods to kill you with everything from magic to a door handle''. There's a very good reason why the students only venture into the library in large numbers (or scouting expeditions).
** The Octavo, the creator's own grimoire is so powerful that it can overload the most powerful anti-magic spell in existence and change reality.
* ''Literature/HarryPotter'':
** The Monster Book of Monsters, which is ExactlyWhatItSaysOnTheTin: a monster that is simultaneously a book ''about'' monsters, if you can get it to stay open long enough to read without it closing on your hand and biting it off. It turns completely docile if you stroke the spine, but the students weren't too keen on getting near it.
** In the eyes of Flourish & Botts, this is worse than when they ordered 200 copies of ''The Invisible Book of Invisibility.'' ("Cost a fortune, and we never found them.")
** Madame Pince has put various spells on her books to protect them from mistreatment. In ''Literature/QuidditchThroughTheAges'', Dumbledore recalls how he once started doodling in the margins without thinking and found the book beating him around the head the next second.
* In ''Literature/NoNeedForACore'', the dungeon creates 'biting words' on its library level.
* In ''Literature/RainbowsEnd'', the library at the University in San Diego has these, although they're purely virtual and only visible to people who are "[[AugmentedReality wearing]]". Nevertheless, they're as real as any of the other e-books the library has. They were created as an in-universe ShoutOut to ''Literature/{{Discworld}}''.
[[/folder]]

[[folder:Tabletop Games]]
* ''TabletopGame/WarhammerFantasyRoleplay'' {{sourcebook}} Tome of Corruption has a section on grimoires - at least one of them is daemonically possessed and will attack people.
[[/folder]]

[[folder:Video Games]]
* In ''VideoGame/BatenKaitos'' Eternal Wings and the Lost Ocean, in the [[BigBoosHaunt Haunted]] [[SpookySilentLibrary Library]], magical tomes fling themselves from the shelves to attack the party.
* In ''VideoGame/BloodstainedRitualOfTheNight'', the Dantalion enemy are spellbooks with lost souls inside that try to devour anyone they come across.
* ''VideoGame/CastlevaniaSymphonyOfTheNight'': There are two varieties. The first type merely flies at you and tries to slam into you. The second type opens up and tries to skewer you with an array of magically summoned weapons.
* ''VideoGame/DonkeyKong64'' : There are monster books in the Creepy Castle Library.
* ''VideoGame/DragonQuestVII'' has the Grimoire, a book version of the ChestMonster that hides in certain bookshelves to ambush players who [[AlwaysCheckBehindTheChair thoroughly inspect the game world]].
* In ''VideoGame/FateGrandOrder'', animate books are common recurring {{Mooks}} that attack by shooting bolts of magic at your Servants; several PaletteSwap versions also possess different skills/abilities.
* ''Franchise/FinalFantasy'':
** ''VideoGame/FinalFantasyV'': The possessed books don't themselves bite, but the demons inside them take forms based on their pictures when they attack, often switching forms during battle. (They're known for the occasional party wipe, as some cast Level 5 Death,[[note]]which instakills everyone with a level of a multiple of 5[[/note]] and you enter the library around level 25).
** ''VideoGame/FinalFantasyIX'': The book monster had poisonous fangs. Possibly a MythologyGag to the aforementioned books from ''V'', given the sheer number of references ''IX'' had to past games.
* ''VideoGame/HarryPotterAndTheChamberOfSecrets'' (most versions) has a level set in the library. You will regularly get the shit beaten out of you by books flying in and out of the shelves.
* ''VideoGame/{{Hearthstone}}'' has Babbling Book as a Mage minion, among various other {{Animate Inanimate Object}}s around Karazhan. It's presumed to be normally docile, but has gone berserk with [[TheArchmage Medivh]] missing.
* ''VideoGame/KingsQuestIIRomancingTheThrone'': In the FanRemake, one of the puzzles involves Graham solving a riddle at a bookshelf. If he gets it wrong, he is eaten by the bookshelf's guardian.
* ''VideoGame/KirbyTripleDeluxe'' has a course reminiscent of the BigBoosHaunt course in ''VideoGame/SuperMario64'', complete with books that attack the player and a very similar aggressive animated piano with sharp teeth from that game.
* In ''VideoGame/LoopHero'', Tomes are sentient books created by the concentration of knowledge and magic in Bookeries. They tend to hide themselves among inert books but can be roused to kill if harmed by a careless human. Humans who read tomes are compelled to master the spells within and then add new spells to to the tome; once they are done, the tome will typically turn on them. In-game, they spawn as an additional enemy on tiles next to Abandoned Bookeries unless a mage spawns.
* Overlord Zetta in ''VideoGame/MakaiKingdom'' ends up becoming one of these. He doesn't bite, but he does possess EyeBeams that vary in strength from simply being really painful to causing explosions the size of a small nuke. In his cameo appearances in other Nippon Ichi games, he almost always attempts to blast someone with them after they mistake him for a normal book.
* ''VideoGame/SecretOfMana'': Books that attack (largely via casting magic) are a recurring enemy. They also have the rare chance of displaying a naughty centerfold!
* In ''VideoGame/SuperMario64'''s BigBoosHaunt course, the books in the library fling themselves out of the shelves to attack Mario.
* In ''VideoGame/TouhouKoumakyouTheEmbodimentOfScarletDevil'', the books in the Scarlet Devil Mansion's library don't bite. They just fire enormous waves of bullets and lasers... and they like to attack in swarms.
* You encounter a few of them in the third chapter of ''VisualNovel/YourTurnToDie''. Fail to drive them away in time and [[spoiler:Shunsuke Hayasaka]] will be killed.
[[/folder]]

[[folder:Webcomics]]
* ''Webcomic/{{Sinfest}}'': Criminy received a demon book as a gift from Fuchsia. He learned to tame it (with bookmarks), and now it's like a fiercely-loyal guard dog that also makes for good reading.
* The Evil Flying Book from ''WebComic/AxeCop'' did this.
[[/folder]]

[[folder:Western Animation]]
* In ''WesternAnimation/TheSmurfs1981'' episode "Papa's Family Album," the evil imp wizard Hotap in Papa Smurf's flashback story turned Brainy's book into one of these, which then chased after Brainy until Papa Smurf turned it back into a normal book again.
* ''WesternAnimation/TheVentureBrothers'' episode "Trial of the Monarch" has Dr. Orpheus getting sworn in to testify - he suggests substituting the Bible for his book of choice, the Necronomicon, warning the bailiff "Watch your fingers - he's a nibbler!"
[[/folder]]
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