Paper architects -- Movable books, past and present : What is a movable book? ; Movable books have a story to tell ; The eighteenth century and the arrival of fun ; A century of innovation ; Pictures ...

This is the definitive reference book for the aspiring paper engineer. The lifeblood of pop-ups is kinetic energy, or the energy resulting from motion. When a card or book is opened, wonderful things ...

Why are we asking for donations? Why are we asking for donations? This site is free thanks to our community of supporters. Voluntary donations from readers like you keep our news accessible for ...