이공계나 자연, 과학대 학생들이 전자기학에 대한
개념을 이해하고 습득하는데 좋은 책입니다.

체계적인 설명과 다양한 예제를 다루고 있어서
학생들이 직접 문제를 풀어보면서 학습해 나가면 됩니다.

쉬운 영어로 되어 있어서 읽기가 수월합니다. 

This revised edition provides patient guidance in its clear and organized presentation of problems. It is rich in variety, large in number and provides very careful treatment of relativity. One outstanding feature is the inclusion of simple, standard examples demonstrated in different methods that will allow students to enhance and understand their calculating abilities. There are over 145 worked examples; virtually all of the standard problems are included. 

I believe there are basically two breeds in the world of EM textbooks. One is obviously J.D. Jackson and the other E.M. Purcell. If Griffiths follows Purcell's approach, I'd say Wangsness is in the style of Jackson (of course no direct comparison is possible, Jackson does not really discuss statics anyway).

Wangness is very much _detailed_ and provides ample examples, many of them kindly worked out. I am not sure if this book provides strong background in vector calculus, though. I always had troubles getting some geometrical intuitions. I guess I have learned more from Purcell in this respect.

Of course, there are many other great books such as Lorrain/Corson, Feynman volume 2 and such. Should be nice to look at those as well.