Approximately 1% of the adult population stutters. Stuttering not only affects speech but often also impacts social interactions, school, education, and work. Adolescents and adults who stutter frequently encounter many uncomfortable experiences in communication situations, which can undermine their self-confidence and significantly reduce their quality of life. Therefore, it is all the more important to seek the right support and find a therapy that suits one’s needs. This guide is aimed at stuttering adolescents and adults for whom stuttering has already become a chronic problem. It assists in the decision-making process regarding whether to start therapy and, if so, which one might be the right fit. It addresses the following questions: What is currently known about the causes and development of stuttering? How does stuttering affect...