Book Article Talk Read View source View history Tools Appearance hide Text Small Standard Large Width Standard Wide Color (beta) Automatic Light Dark Page semi-protected From Wikipedia, the free encyclopedia For other uses, see Book (disambiguation). The Gutenberg Bible, one of the first books to be printed using the printing press Literature Oral literature Folklore fablefairy talefolk playfolksongheroic epiclegendmythproverbOrationPerformance audiobookspoken wordSaying Major written forms Drama closet dramaPoetry lyricnarrativeProseNonsense verseErgodicElectronic Long prose fiction AnthologySerialNovel/romance Short prose fiction NovellaNoveletteShort storyDrabbleSketchFlash fictionParableReligiousWisdom Prose genres Fiction Children'sEncyclopedicGenre actionadventurecoming-of-agecrimeeroticfantasyhorrormilitaryparanormalromancescie nce fictionsupernaturalwesternHistoricalRealistSpeculative Non-fiction Academic historyphilosophyAnecdoteEpistleEssayJournalismLetterLifeNaturePersuasiveTravelogue Poetry genres Narrative ChildrenEpicDramaticVerse novelNational Lyric BalladElegyEpigramGhazalHaikuHymnLimerickOdeQasidaSonnetVillanelle Lists EpicGroups and movementsPoets Dramatic genres ComedyLibrettoPlay historicalmoralSatireScriptTragedyTragicomedy History AncientClassicalMedievalModernistPostmodern Lists and outlines OutlineGlossaryBooksWritersMovementsCyclesLiterary awards poetryShort story collectionLost literary work Lacuna Theory and criticism SociologyMagazinesCompositionLanguageNarrativeFeudEstate Literature portal A book is a medium for recording information in the form of writing or images. Modern books are typically in codex format, composed of many pages that are bound together and protected by a cover; they were preceded by several earlier formats, including the scroll and the tablet. The book publishing process is the series of steps involved in their creation and dissemination. As a conceptual object, a book refers to a written work of substantial length, which may be distributed either physically or digitally as an electronic book (ebook). These works can be broadly classified into fiction (containing invented content, often narratives) and non-fiction (containing content intended as factual truth). A physical book may not contain such a work: for example, it may contain only drawings, engravings, photographs, puzzles, or removable content like paper dolls. It may also be left empty for personal use, as in the case of account books, appointment books, autograph books, notebooks, diaries and sketchbooks. Books are sold at both regular stores and specialized bookstores, as well as online for delivery, and can be borrowed from libraries. The reception of books has led to a number of social consequences, including censorship. The modern book industry has seen several major changes due to new technologies, including ebooks and audiobooks (recordings of books being read aloud). Awareness of the needs of print-disabled people has led to a rise in formats designed for greater accessibility, such as braille printing and large-print editions. Google Books estimated in 2010 that approximately 130 million total unique books had been published. Etymology The word book comes from the Old English bōc, which in turn likely comes from the Germanic root *bōk-, cognate to "beech". In Slavic languages like Russian, Bulgarian, Macedonian буква bukva—"letter" is cognate with "beech". In Russian, Serbian and Macedonian, the word букварь (bukvar') or буквар (bukvar) refers to a primary school textbook that helps young children master the techniques of reading and writing. It is thus conjectured that the earliest Indo-European writings may have been carved on beech wood. An avid reader or collector of books is a bibliophile, or colloquially a "bookworm".