Raman spectroscopy has become a central technique for probing the vibrational and structural properties of matter, with applications ranging from materials science and energy research to biology and medicine. This book brings together recent works that reflect both methodological progress and expanding areas of application, offering readers an overview of current directions in the field. By addressing advances in instrumentation alongside practical research frontiers, the book provides a resource for researchers, students, and professionals who wish to follow developments in Raman spectroscopy and apply them to scientific and technological challenges. We hope the readers find the book worth their time.