The 160-page book is a reconstruction of the workshop where Leonardo planned and produced his inventions and works of art. This is a single virtual workshop and its rooms represent all the places where he worked at different times in his life. The captivating 3D computer graphic reconstructions enable you to see how Leonardo invented his amazing machines, beginning with the simplest and continuing through those that are strangest and most fascinating. The CD-ROM really brings the book to life, so that you become involved in an interactive game that lets you explore every corner of the whole workshop. Use the machines and create your own design! With the paper models you can make three of the machines for yourself: the Cart, the Aerial Screw and the Swing Bridge.