This book provides detailed step by step solutions of common problems in electromagnetic theory course. The book can be regarded as a self -study since it presents the solutions of the problems in a step by step method. The book is very helpful to students specializing in physics and electrical engineering. The book is also very helpful to PhD physics students intending to take the PhD qualifying exam, also the book provides a good reference to the instructor who is teaching the electromagnetism course. The book includes most of the electromagnetic theory subjects such as vector calculus, electric fields, electric potentials, electrostatic energy, dipole and quadrupole potentials, method of images, Laplace equation, magnetic fields, magnetic vector potentials, magnetic scalar potentials, magnetic induction and magnetic energy, circuits and electromagnetic waves.