This Handbook explains basic concepts underlying electromagnetic properties of materials, addresses ways of deploying them in modern applications, and supplies pertinent data compiled for the first time in a single volume. Examples, including tables, charts, and graphs, are furnished from a practical applications view point of electromagnetic materials in various fields. These applications have grown enormously in recent years, pertinent to electromagnetic shields, radar absorbing materials, bioelectromagnetic phantoms, smart materials, electromagnetically active surfaces, exotic magnets, application-specific electrodes, and ferrites, etc.