Proteomics is a diverse field dealing in study of various proteins and their structure and functions. Biomedical research has reached the stage where a novel era of identifying a disease or a protein globally has emerged. During the post-genomic era, proteomics played an extremely significant role in analyzing molecular functions of proteins and determining biomarkers in diseases affecting human beings. Mass spectrometry, high-density antibody and protein collection, and 2D gel electrophoresis are few of the generally employed techniques in proteomics field. This book elucidates four significant and varied areas of present proteomic research: proteomic analysis of protein functions, organelles and secretome proteomics, proteomic discovery of disease biomarkers, and proteomic techniques for analyzing disease procedures. The use of these techniques in analyzing proteins in different diseases has now become a significant part of biomedical research across the globe. This book will serve as a useful source of reference for students, researchers as well as clinicians.