Want to know how rocket engines work? This learning guide for kids from 10 to 100 covers the basics of how rocket engines from solid fueled boosters, to liquid fueled moon rockets, to backpack thrusters, to nuclear thermal engines, ion drives and others work. In simple, non-technical language, the physics and engineering of how these marvels work is explained, in a slowly building way, so that even a kid with no math background can understand. There are lots of diagrams of both the engines, and how they fit into spaceships. Funny characters take the fear out of rocket science for everyone to enjoy, and home experiments make the basic principles easy to understand. Let's explore space, and You Will Design Rocket Engines.