This book is a comprehensive, focused resource on intraoperative neurophysiological monitoring (IOM). This rapidly evolving field has created a demand for an up-to-date book such as this that builds on foundational concepts necessary to the practice of IOM in the context of anatomy and physiology. Each chapter is designed to not only inform the reader, but to also test the reader on the information presented - therefore promoting practical, problem-based learning.  Surpassing the quality of its successful predecessor, Principles of Neurophysiological Assessment, Mapping, and Monitoring, Second Edition, is positioned to suit the needs of residents and fellows studying for the IOM certificate programs, physicians and anesthesiologists practicing IOM, and neurotechnologists both experienced and in training.