The German translation of this classic of theoretical physics is now available in a revised edition. Errors in equations and formulas, as well as typographical discrepancies have been corrected throughout. With these revisions the work has increased its claim to accuracy and legibility. Unique to this textbook of electrodynamics are the incomparably large number of calculated examples and special cases and the many exercises at the end of each chapter. As in the previous edition, the book is for the most part written with SI units. Its proximity to applied science (including experimental physics) is valued by students, scientists, teachers and engineers alike.