The electromagnetics of complex media and metamaterials is a field that is making very rapid progress, so that books that are only a couple of years old become soon outdated. This book treats very many aspects of new materials from their electromagnetic response point of view: chiral, anisotropic, magnetic, photonic band gap media, and especially the new type of metamaterial, Veselago medium (material with simultaneously negative permittivity and permeability). Analytical, numerical, model-based, and experimental aspects are all considered. The book is intended for researchers and specialists in the fields of electromagnetics of new materials, but people who wish to enter the field will also find it a great help in getting acquainted with the problems in this area since the articles are mostly reviews that also include the most up-to-date information about electromagnetics and complex materials.