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[[File:PopupCinderella.gif|thumb|Demonstration of the action of a pop-up book.]]
A '''pop-up book''' is any book with [[three-dimensional space|three-dimensional]] pages, often with
The terminology serves as an [[umbrella term]] for '''movable book''', '''pop-ups''', '''tunnel books''', '''transformations''', '''volvelles''', '''flaps''', '''pull-tabs''', '''pop-outs''', '''pull-downs''', and other features each performing in a different manner. Three-dimensional [[greeting card]]s use the same principles.<ref>{{Cite book|title=Pop-up books: a guide for teachers and librarians|last1=Bluemel |first1=Nancy |date=2012|publisher=Libraries Unlimited|last2=Taylor |first2= Rhonda Lynette Harris |isbn=9781591583981|location=Santa Barbara, Calif.|oclc=758844521}}</ref>
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[[File:Popup-diagram.svg|thumb|A geometric diagram of the basic principle of a pop-up book: the [[parallelogram]].]]
Design and creation of such books in arts is sometimes called "paper engineering". This usage should not be confused with traditional [[paper engineering]], the engineering of systems to mass-produce paper products.
=== Animated books ===
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