This textbook is designed for Electromagnetism I. It meets the needs of professors and students by encompassing all classical and necessary fundamentals into a single comprehensive text by restructuring presentation, simplifying mathematics, and reinforcing physics. It includes the Gilbert model of magnetism and covers optics at an introductory level, providing insight to geometric optics, physical optics, and diffraction. Mathematica is used throughout and downloads are available from the authors' website. Homework problems and solutions manuals are supplied for adopting professors.