This textbook serves as a comprehensive reference on the latest science underlying the development of biological therapies, as well as their use in animal and human studies of rheumatological disease. Part A covers targets of emerging therapies - targeting/manipulating cells, targeting cell surface receptors, targeting cytokines, inflammatory mediators and transcription factors, and targeting plasma molecules. Part B then examines the use and implementation of these new therapies in the clinic, covering their use in treating specific rheumatological conditions. Part C discusses issues relating to study design and regulatory issues in the US and Europe.