From whimsical animal shapes to more sophisticated and intricate flower designs, pop-ups can add a sense of fun and elegance to any occasion. At the heart of pop-ups lie a few simple mechanisms, and no matter how complex the design, the "pop" can be achieved using one of a few basic techniques. Creating 3D Pop-Up Cards covers these techniques, including essential folds, creating slots and tabs, and adding rotating discs and springs. Simple step-by-step instructions will make even a beginning papercrafter into an advanced paper engineer.