Specializing in viewing of vocal fold vibration, strobolaryngoscopy is a valuable tool for laryngologists and speech-language pathologists in diagnosis of pharyngolaryngeal diseases. This book presents 300 high-quality images and 18 videos from selected representative cases, which help practitioners to grasp the key diagnostic points of srobolaryngoscopy quickly. By watching the videos, readers can observe the vibratory characteristics of vocal folds in details. The book is presented in two parts: The first part is the overview of the strobolaryngoscopy, and the second part focuses on the strobolaryngoscopic signs of common pharngolaryngeal diseases. With the illustrative figures and videos, this book is a practicable reference to laryngologists and speech pathologists.