The only book available to consider all communicative disorders. The Handbook of Genetic Communicative Disordes deals with human communication, both normal and disordered and how our communication abilities are affected by our genes. Many, probably most, communicative disorders are of genetic origin, even if not exclusively genetic. A knowledge of genetics, therefore, is essential to our understanding of communication, of communicative disorders, of how such disorders come about and of how to deal with them. Many professionals in the communicative sciences are relative newcomers to the understanding of genetics as it applies to communicative disorders. A speech-language clinician certainly can diagnose and treat stuttering, for example, but that clinician may not be fully aware of the role of a genetic counselor for the family of a stutterer. An audiologist may be able to assess a hearing impairment, but an understanding of the underlying genetics of that impairment would make that person a better audiologist. All of these professionals need a source that brings together essential ideas from related disciplines: the Handobook of Genetic Communicative Disorders bridges this gap.