This book teaches anyone interested how to build LEGO MINDSTORMS robots. He starts with an easy robot and gets to more detail in the succeeding 6 robots built in the book. The robots he presents are award winning robots, so he is giving away his secrets. He also teaches how to program the robots. If you are not a programmer, then you can use the code provided. He tells you what equipment you need and how to get it inexpensively. So everything is discussed that you will need to create these robots or modify his designs to create your own.