Raman spectroscopy is a spectroscopic technique used to study vibrational, rotational, and other low-frequency modes in a system. It is commonly used in chemistry, since vibrational information is specific to the chemical bonds and symmetry of molecules. This expansive edited work covers principles of Raman theory, analysis, instrumentation and measurement with contributions from well known experts on the techniques. It contains case studies as well as over 500 drawings and photographs. This edition features numerous techniques that have evolved in recent years due to the expanded installation and usage of the instrumentation. New applications include biomedical, environmental, and forensic uses.