This is a comprehensive, applications-oriented introduction to geometrical optics, wave optics, and modern optics. Contains new chapters on laser beam characteristics and nonlinear optics; expanded coverage of fiber optics; new sections on ray tracing, thick lens, the Doppler effect, and evanescent waves; and valuable coverage of matrix treatment of polarization, Fraunhofer diffraction, Fourier optics, and more. An ideal introductory guide for the physics instructor, specifically those concentrating on optics.