"This is a nice treatment and a lucid description of the rapidly growing field of optical metamaterials. In this book, Wenshan Cai and Vladimir Shalaev have done a tremendous job in making this exciting scientific topic accessible to those interested in this field. They have discussed its fundamental concepts and potential applications in a clear and engaging way, providing the reader with a fascinating overview of this active area of research. I enjoyed reading this book, and I highly recommend it to all who wish to learn about the optical metamaterials. It tells a fascinating story about this field of optical science and engineering." – Nader Engheta, H. Nedwill Ramsey Professor of Electrical and Systems Engineering, University of Pennsylvania" />