Functional Metamaterials and Meta-devices is a book that contains basic and advanced knowledge about metamaterials. The book is easy to read, but it is also very specialized, so it is recommended for students, scientists, and engineers in materials, electronics, optics, mechanics, acoustics, telecommunications, or related areas, as well as those who wish to be aware of the state of the art of these fields.

The book is well explained and illustrated, containing a large number of images, figures, graphs, and equations, which help the reader to quickly and adequately understand the text.

Moreover, it can also be very useful for those who are looking for very specific information about any type of metamaterial. The book explains, in a friendly, clear, and concise manner, the fundamental principles of metamaterials and metadevices. Their design, manufacture, and applications are also described according to the classifications established by the author. His classifications are useful and adequate, and they allow the reader to clearly appreciate the interesting world of metamaterials.

In the 12 chapters in this book, the reader will be able to identify the great technological potential associated with the use and application of metamaterials. The author presents a wide variety of current technological examples, as well as those of everyday applications.

The first chapter is an introduction to Metamaterials and Metadevices. It contains the fundamental concepts for the proper understanding of the structure and performance of these materials. It explains the classification and evolution of metamaterials. The author presents an interesting review about Emerging Functional Metadevices.

Chapter 2 describes the Design and Fabrication of Metamaterials and Metadevices. Chapters 3–11 include detailed descriptions of each type of metamaterials and metadevices.

In chapter 6, the author describes chiral metamaterials and metadevices and writes about a single gyrod metamaterial (a chiral structure that covers constant mean curvature). This structure can be found in nature in certain wing scales of butterfly species. The structure can be fabricated using different techniques (described in the book). This is a clear example that the best school is nature. If we observe it carefully and learn from it, we will realize efficient technological contributions that would require a minimum amount of energy and have a minimal impact on the environment.

The bibliographical references are more than adequate, appropriate to each of the sections of the book, and up to date. I enjoyed reading the book; concepts are explained well, with examples of a wide variety of functional metamaterials and metadevices applications. The audience for this book would be students, professionals, or researchers in the areas of physics, optoelectronic engineering, electronics, mechanics, materials engineering or nanotechnology.

Reviewer: Miriam Sánchez Pozos, Department of Mechanical Engineering and Sustainable Energy Engineering, Universidad Autónoma del Estado de México, Mexico.