Each book is dedicated to a different topic and contains 4 3-D models, assembled by tearing out the prepared cardboard pieces indicated by the dotted lines. Just follow the instructions and watch as the objects in each book take form: 4 powerful spaceships, 4 amazing dinosaurs, 4 exciting emergency vehicles and 4 rumbling supercars. Colourful illustrations provide a background for the models, framing them in a convincing context. And there's lots of information and fun facts for learning more about the various topics, making these volumes both interesting to read and great fun to play with.