Other excellent electromagnetic theory books include:
Using Reitz & Milford alongside Griffiths can fill gaps and clarify difficult concepts like polarization and boundary conditions. Other excellent electromagnetic theory books include:
The end-of-chapter problems in Reitz & Milford are legendary. They range from routine to research-level. Aim to solve at least 50% of them. Solutions are not provided in the PDF for obvious copyright reasons, but many solution manuals exist (often shared via university physics forums). Using Reitz & Milford alongside Griffiths can fill
The critical synthesis occurs in this section: Other excellent electromagnetic theory books include:
Simply possessing the PDF is not enough. To master electromagnetism, you need a strategy. Here is a study guide based on the Reitz-Milford methodology.