The Perspectives on Diseases and Disorders series provides clear, careful explanations that offer readers insight into what these conditions are, what causes them, how people live with them, and the latest information about treatment and prevention.; This new volume in the Perspectives on Diseases & Disorders series provides an overview of speech disorders, including diagnosis, prevention, and current research. Controversies surrounding speech disorders-including the prevalence of discrimination again; Each volume in this timely series provides essential information on a disease or disorder (including symptoms, causes, treatments and cures); presents the controversies surrounding causes, alternative treatments, and other issues; and offers first-person