This is the sixth volume of a well-established and popular series in which expert practitioners discuss topical aspects of light scattering in solids. In recent years, whenever a new class of materials has been discovered (e.g. high Tc superconductors, semiconductor superlattices, semimagnetic semiconductors), Raman spectroscopy has been at the forefront of the research. This volume discusses recent results of Raman spectroscopy, with emphasis on obtaining information about elementary excitations.