Book excerpt: This is a book about speech and language. It is primarily intended for those interested in speech and its neurophysiological bases: phoneticians, linguists, educators, speech therapists, psychologists, and neuroscientists. Although speech and language are its central topic, it provides information about related topics as well (e.g. structure and functioning of the central nervous system, research methods in neuroscience, theories and models of speech production and perception, learning, and memory). Data on clinical populations are given in parallel with studies of healthy subjects because such comparisons can give a better understanding of intact and disordered speech and language functions. There is a review of literature (more than 600 sources) and research results covering areas such as neuroanatomy, neurophysiology, development of the nervous system, sex differences, history of neurolinguistics, behavioral, neuroimaging and other research methods in neuroscience, linguistics and psychology, theories and models of the nervous system function including speech and language processing, kinds of memory and learning and their neural substrates, critical periods, various aspects of normal speech and language processes (e.g. phonetics, phonology, syntax, semantics, reading), bilingualism, speech and language disorders, and many others. Newcomers to the field of neurolinguistics will find it as readable as professionals will because it is organized in a way that gives the readers flexibility and an individual approach to the text. The language is simple but all the technical terms are provided, explained, and illustrated. A comprehensive glossary provides additional information.