Immunolabeling has emerged as a useful technique in pharmacology, biochemistry and other fields of science and technology. This book provides specialized data regarding diverse trends of immunoassay and associated methods. This book deals with immunolabeling techniques utilized in a variety of areas of research. It also includes papers which introduce some immunolabeling methods which are of crucial importance such as utilization of conjugates of certain kind of proteins. Furthermore, it explains the usage of bead-based assays and provides a summary on laboratory assay organizations. The book presents technical improvements that are intended to provide a resourceful channel for expansions in immunolabeling methods. This book intends to provide useful data to all its readers dealing with the above stated topic.