This book, with its versatile approach, includes thorough coverage of statics with an emphasis on the dynamics of engineering electromagnetics. It integrates practical applications, numerical details, and completely covers all relevant principles. Topics include vectors and fields, Maxwell's Equations, fields and waves, electromagnetic potentials, devices, circuits, and systems, and transmission-line essentials for digital electronics. The second part of the book covers communications, guided wave principles, electronics and photonics, and radiation and antennae. A valuable resource for computer engineering and electrical engineering professionals.
Its main idea is how to use electromagnetism in engineering so that it doesn't explain the details about why the equations is that. If you want to know the concept more, then I recommend Griffiths' EM book.
Electromagnetism concepts is not all just "physics". Some ideas are about engineering. You can see those things in this book.
Its math trick is not difficult (Griffiths book's math is very beautiful).