This comprehensive volume showcases cutting-edge research on stuttering from a wide range of perspectives including neuroscience, genetics, epidemiology, speech-motor control, language effects, machine learning, disability studies, treatment options and assessment. Featuring the work of a diverse range of specialist authors from around the globe, the book discusses psychological, neuroscientific and medical aspects of stuttering. Several core topics are introduced by tutorial chapters written by specialists. These explain modern approaches in a way that is accessible to non-specialists, sometimes introducing developments not yet applied to stuttering research that have the potential to impact future work on stuttering. Tutorial chapters are followed by content chapters digging deeper into the topic, and highlighting a range of up-to-date research in the field. The book also features discussions of neuroplasticity in people who stutter, and explores a range of assistive technologies including virtual reality and mobile apps. The Routledge International Handbook of Stuttering will be essential reading for researchers and postgraduate students in the fields of fluency disorders, speech and language pathology, communication studies and applied linguistics.