'Jie Huang has been and continues to be one of the primary developers of the theory of nonlinear systems, including especially the theory of nonlinear output regulation. He developed a firm mathematical foundation for this field, and this book reflects the rigor and excitement of his primary research.' Frank Lewis, University of Texas at Arlington 'The topic of nonlinear output regulation is one of the most important and currently one of the most active research areas in control theory and applications. Jie Huang is one of the few leading researchers in this area, and the material covered is excellent and cohesive.' Zongli Lin, University of Virginia 'The book is very clearly written. It provides a comprehensive and up-to-date treatment of the output regulation problem.... Since the author himself is a pioneer and very active researcher in the field of the output regulation, the book is an interesting monograph with outgrowths from many original contributions by the author and his research collaborators.' Qiang Lu, Professor, Department of Electrical Engineering, Tsinghua University, Beijing, China