Written by one of the most prominent experts in the field, this text explains the physical nature of the electric and magnetic fields encountered in the study of electrical engineering. The author's approach combines clearly set forth basic theory, easily understood computational methods, and practical engineering applications. This approach does not depend on a difficult mathematical development, rather it seeks to derive its lessons from a simple geometrical method of visualizing fields. An accompanying IBM disc provides a program that enables students to understand and use the author's approach from the outset, including the solution of practical design problems. The text is intended for use in advanced undergraduate electrical and electronic engineering courses, as well as for courses in aeronautical and mechanical engineering. Practicing engineers will find it a valuable resource and reference.