What makes Pop-Ups POP??
The answer lies in a variety of methods of cutting and folding, and in mechanisms hidden behind and underneath the page. The construction methods are endless, but they can be divided into four categories: movable parts that lie flat, images that pop up, books that fold, and fantastic forms that use multiple mechanisms.
Fold, Pull, Pop, and Turn http://library.si.edu/digital-library/exhibition/paper-engineering
This pop-up by Marion Guild, is an example of the pop-up construction technique known as: Stage set or multiple layers: A book becomes a theater set when it is viewed opened to a 90-degree angle. It is one of the first constructions to be used for pop-up books and particularly suited for creating scenes. 
This is the story about Rudolph, a young reindeer who possesses an unusual glowing red nose. Teased and taunted and excluded by the other reindeer because of this trait, Rudolph manages to prove himself one Christmas Eve after Santa Claus catches sight of Rudolph's nose and asks him to lead his sleigh that night. The glow of his nose is so great that it lights Santa’s path in the skies the through snowy weather and he is cheered by his fellow reindeer for saving the day.