This section of the book "Topics in Applied Physics Volume 50" provides an overview of the various topics covered in the volume, which focuses on light scattering in solids. The book is part of a series of four volumes dedicated to the scattering of light by solids, with this volume specifically addressing the general principles and experimental techniques of light scattering. It includes contributions from leading experts in the field, such as Manuel Cardona, Gernot Güntherodt, Richard K. Chang, Marshall B. Long, and Hans Vogt. The content covers both linear and nonlinear light scattering, resonant phenomena, multichannel detection, and coherent and hyper-Raman techniques. The book aims to provide a comprehensive resource for researchers and practitioners in the field of light scattering, covering a wide range of topics from instrumentation to theoretical aspects.This section of the book "Topics in Applied Physics Volume 50" provides an overview of the various topics covered in the volume, which focuses on light scattering in solids. The book is part of a series of four volumes dedicated to the scattering of light by solids, with this volume specifically addressing the general principles and experimental techniques of light scattering. It includes contributions from leading experts in the field, such as Manuel Cardona, Gernot Güntherodt, Richard K. Chang, Marshall B. Long, and Hans Vogt. The content covers both linear and nonlinear light scattering, resonant phenomena, multichannel detection, and coherent and hyper-Raman techniques. The book aims to provide a comprehensive resource for researchers and practitioners in the field of light scattering, covering a wide range of topics from instrumentation to theoretical aspects.