"This book is a significant contribution. It provides an accessible treatment for a wide audience who would otherwise have to labor through difficult mathematical or engineering treatments. The only prerequisite is a basic understanding of differential equations and linear algebra."--Brian Ingalls, University of Waterloo"A very useful addition to the literature on the basic principles and theory of feedback systems. This is a unique and excellent book. I believe it will appeal to a broad audience."--Elling W. Jacobsen, Royal Institute of Technology, StockholmAström, Karl J. is the author of 'Feedback Systems', published 2008 under ISBN 9780691135762 and ISBN 0691135762.