The revision of this highly acclaimed text is designed for use in advanced physics courses--intermediate level juniors or first year graduates. Basic knowledge of vector calculus and Fourier analysis is assumed. In this edition, a very accessible macroscopic view of classical electromagnetics is presented with emphasis on integrating electromagnetic theory with physical optics. The presentation follows the historical development of physics, culminating in the final chapter, which uses four-vector relativity to fully integrate electricity with magnetism.