This Complete Third Edition is an easy to study extension of the very successful previous Primers, and includes information on and discussion of macro-, micro- and sonoanatomy; of extreme value are the references to various videos depicting the nervous system anatomy and the different blocks that serve patients best. André Boezaart and his colleagues have compiled this essential resource for anyone who needs a more comprehensive understanding of the complexities of the nervous system anatomy as it applies to regional anesthesia and acute pain medicine. With over four decades of personal experience researching, practicing, and teaching in these specific areas, together with over 150 years combined experience of the co-authors, Professor Boezaart, et al. are best qualified to bring this essential resource to the perpetual student.