"Electrodynamics" is the second volume in the new and only series on theoretical physics with MAPLE applications. This completely newly conceived series conveys theoretical physics from a modern viewpoint based on much experience in lecturing. In addition to the elegant presentation, the accompanying CD contains applications for MAPLE, which allow readers to experiment with the theory and which considerably facilitate comprehension. The second lecture on theoretical physics is particularly demanding due to the complexity of the equations, making the Maple applications extremely valuable.