This instructor's solutions guide is produced for our graduate electrodynamics textbook, "Macroscopic Electrodynamics". Notice the use of the word "guide" rather than "manual". We believe a step-by-step solutions manual is not suitable for this advanced-level text. A detailed solutions manual would be unwieldy given that there are about 300 substantial problems in the text. We do not think university-level instructors require such a step-by-step manual and should be free to attempt their own innovative solutions. In the guide, we will suggest basic approaches and helpful starting points as well as give some crucial intermediate steps and the final result, but we will leave it up to the instructors to fully complete the solutions. Thus, web plagiarism will be more difficult to commit and more easily identifiable, and this will extend the useful life of the text.