Though we have records of gatefold mechanisms being used in encyclopedias in 1100, these can’t be called pop ups in the true sense. The first known recorded use of paper mechanism was in an astrological manuscript in the year 1306. Since it was increasingly used to depict ideas in serious texts, these mechanisms were exclusively used in books for adults. Even though pop ups were used in books, it was only in the 18th century that pop-ups were used not just as an informative tool, but also an entertaining one. This is when we find the first books with pop ups for children. But it was only after 1810 that the golden age for pop ups began, a lot of mass produced paper engineered books were created during this era for both children and adults. After a brief lull during and after world wars, the second golden age of pop-ups began in 1965 when pape

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