This book shows the reader how to make a range of robust polyhedra from ordinary printer paper using a technique known as modular origami. Modular origami designs are made by first folding several, or sometimes many, sheets of paper into simple individual modules and then by putting these modules together, normally without the help of any kind of adhesive, to create a finished polyhedral form. Modular origami design has moved on since the hugely popular...
Flexagons are made by folding paper in certain ways and when they are flexed, turned and unfolded in different ways, they show puzzling and curious effects. Hidden inside a flexagon are a number of concealed faces and the challenge is to discover how to flex them into view smoothly and with confidence. Some of this extensive collection are in the form of puzzles to be solved, others have rather mysterious properties.