This textbook describes the molecular basis of the functions of the nervous system. It provides information about the important topics of neurochemical research such as vision, membrane structure and function, electrical properties of nerve cells, synapses and receptors, development, plasticity and learning. The author emphasizes common aspects, outlines the experimental methods, and describes model systems that are less complex and yet yield relevant information. He also provides in each chapter a summary of important terms and references, a list of references cited, and suggestions for further reading. This well-organized, very readable, and skillfully balanced presentation of the subject matter will help students and interested professionals to understand the interrelations between biological, chemical, and physical phenomena that are characteristic of the nervous system and underlie its functions as well as its pathological disorders.