This book is designed to take the experienced user of Mindstorms to the next level. It contains information available nowhere else on such topics as sensor development, pbForth and LegOS. Numerous projects are presented with simple systematic instructions, and though the topics covered are advanced, readers should be able to assemble the projects and understand how they work without any prior knowledge of electronics. About the authors: The authors of Extreme Mindstorms are widely regarded as some of the leading gurus for serious Mindstorm development. Dave Baum is the creator of NQC, the most powerful language available for programming Mindstorm robots. Luis Villa has maintained an extensive collection of information on legOS, and Hempel is an authority on constructing custom Mindstorms sensors. Each author has written a section of the book based on his specialty.