Amazing Machines functions as both manual and workshop. Here are four machine bodies waiting for young engineers and mechanics to build them. The simple text explains what the machines are, and readers can then snap on the required tools each one needs to do its job. The machines include a space lander, a submersible, an excavator, and a rescue vehicle. Using the 42 snap-on gadgets and gizmos bundled in, young readers can transform powerless shells into wonderful and wacky vehicles.