This text/reference provides students, practicing engineers, and scientists with the fundamental physical laws and modern applications used in industry. Unlike many of its competitors, modern physics theory (e.g., quantum physics) and its applications are discussed in detail, including laser techniques and fiber optics, nuclear fusion, digital electronics, wave optics, and more. An extensive review of Boolean algebra and logic gates is also included. Because of its in-text examples with solutions and self-study exercise sets, the book can be used as a refresher for engineering licensing exams or as a full year course. It emphasizes only the level of mathematics needed to master concepts used in industry.