This textbook covers the advanced application and techniques of electrodynamics. The book begins with an introduction to the topic, with basic notations and equations presented, before moving on to examine various topics such as electromagnetic waves in a vacuum, the theory of relativity (including the Lorentz transformation) and electromagnetic fields in matter. Dispersion and transport are discussed, along with wave interactions in types of plasma and metamaterials, before the problems of electromagnetism in continuous matter are reviewed, and boundary interactions are studied. The second half of the book looks at the more advanced topics, including dielectric guides techniques, further metamaterial and plasma interactions (such as Helicoidal phenomena), interactions involving conductivity and x-ray, and magnetic field dynamics. Condensed matter equations are covered along with more general matter relations, and an advanced study of the direct and inverse problems of electrodynamics closes the topic. Finally, advanced exercises are available in the final chapter. This is an excellent learning tool for students studying electrodynamics courses, and serves as a robust resource for anyone involved in the field. Part of IOP Series in Emerging Technologies in Optics and Photonics.