This book compiled with a special emphasis on the application of spectral and analytical data in the development and characterization of pharmaceuticals. This book provided lot of illustrated examples for better understanding of spectral applications, and also it will enhance the knowledge and working skills of the learners. This book also covered advanced techniques of current pharmaceutical industry interests such as XRD, Raman Spectroscopy, LC-MS/MS, LC-NMR, q-NMR, SEM/TEM etc. Thus, this book is formulated for the first time on the concept of spectral interpretation based on illustrated applications in real time research, and it will definitely attract young researchers, scholars, graduate students belonging to the disciplines of pharmaceutical, life and chemical sciences.