From serious science to playful trick (early transformation books) By the 18th century, book printers realized that moving paper parts could also be theatrical. Harlequinades and “metamorphosis” books offered a kind of sliding or folding stage show on paper. Mechanically, … Continue reading An illustrated history of Interactive books Part 2: From serious science to playful trick, by The Booknook Librarian (18th – 19th century)