This reader-friendly book presents the fundamental principles of physics in a clear and concise manner. Emphasizing conceptual understanding as the basis for mastering a variety of problem-solving tools, it provides a wide range of relevant applications and illustrative examples. This book discusses electricity and magnetism, optics, and modern physics. For anyone wishing to learn more about the fundamentals of physics and how physical principles apply to a variety of real-world situations, devices, and topics.