The broad-based coverage of this book stretches from the basic physical principles of nonlinear interaction of light with condensed matter to topics of current research interest. It provides a balanced treatment of theoretical and experimental aspects of the following subjects: - nonlinear optics of semiconductor quantum wells, disordered media, surfaces, metals, and organic solids; - nonlinear effects in fibers; - optical phase conjugation; - field quantization and the production of nonclassical light; - cavity quantum electrodynamics; - radiation pressure in nonlinear optics; - Brillouin scattering from opaque surfaces; - optical bistability.