This volume provides a thorough treatment of multiple scattering of light and other electromagnetic radiation in media composed of randomly and sparsely positioned particles. It systematically and consistently presents radiative transfer theory as a branch of classical macroscopic electromagnetics. After tracing the fundamental link between radiative transfer theory and the effect of coherent backscattering, the authors explain them in the context of a comprehensive hierarchy of electromagnetic scattering problems. Dedicated sections present a thorough discussion of the physical meaning and range of applicability of the radiative transfer equation and compare the self-consistent microphysical and the traditional phenomenological approaches to radiative transfer. This self-contained book will be valuable for science professionals, engineers, and graduate students working across a wide range of disciplines including optics, electromagnetics, remote sensing, atmospheric radiation, astrophysics, and biomedicine.