Percy Hammond is a very distinguished figure in the circles of electromagnetic scholarship. This book is very well known and loved in its first three editions. He is also a serious contributor to computational methods with the "Tubes and Slices" method given prominence in Engineering Electromagnetism (with Sykulski) and to fundamental thinking about the geometry of fields in The Geometry of Electromagnetic Fields (with Baldomir). Hammond is a series editor for Monographs in Electrical and Electronic Engineering.