A manual which explains how paper mechanics work and provides instructions for creating everything from the most elementary pop-up card to highly sophisticated fold-away paper sculptures. The basic principles are simple and the book introduces these. It then shows how they can be developed and combined to produce a kaleidoscope of 3D possibilities. The book is a distillation of his practical experience. It explains the factors which have to be considered when designing, as well as solutions to potential pitfalls.