"Manual práctico de tartamudez" by Alfonso Salgado Ruiz is a guide addressing the complexities and misconceptions surrounding stuttering. It provides up-to-date information on the factors contributing to the development and persistence of stuttering, as well as evidence-based speech therapy and psychological treatments for both children and adults. The manual details the problem of stuttering, its causes, proper evaluation methods, and various treatment programs, making it a resource for those seeking to understand and address stuttering.