This updated edition of the most comprehensive, pedagogically sound textbook in the field provides an overview of stuttering's etiology and development, details the latest approaches to accurate assessment and treatment, and provides new case studies and online videos that illustrate different levels and ways of treating stuttering. Exploring a variety of practice settings, the book covers evidence-based practice, counseling, IEPs, and assistive devices and has been thoroughly updated to address all current methodologies. NEW! The latest findings in genetics, epigenetics, brain imaging, sensory-motor control, language, and emotion provides students with an up-to-date view of stuttering.