This text investigates the fundamental principles of light behavior through the dual lenses of geometrical ray tracing and physical wave theory. Richard S. Longhurst provides a comprehensive academic framework designed for advanced undergraduate students, synthesizing classical optical phenomena with the mathematical rigor required for professional application. The work utilizes a systematic approach to bridge the gap between simple ray optics and the more complex wave-based interactions of light.

This work is regarded as a foundational reference in the field of classical optics, noted for its technical density and clear pedagogical structure. The text remains a standard resource for students and practitioners seeking a thorough grounding in the mathematical and physical principles governing optical systems.