This document provides an overview of the Smithsonian exhibition "Paper Engineering: Fold, Pull, Pop & Turn" which showcases over 50 examples of pop-up and movable books spanning 500 years. It discusses the origins of movable book mechanisms in medieval times and how they were used to calculate data and communicate information. In the 16th century, advances in printing and scientific knowledge led to more elaborate pop-up books being created to visually demonstrate complex systems. More recently, pop-up books have been used to teach children in an interactive way and to bring the natural world to life through intricate paper engineering. The exhibition aims to allow visitors to experience these rare works as the creators originally intended.