This book covers the basic concept regarding clinical audiology. This book is specifically designed for undergraduate training at MBBS level and for residents in the field of oto-rhino-laryngology (ENT). It meets the requirement, which a medical graduate ought to know regarding basic clinical audiology. I hope students and residents will find it very useful in their preparation for examination in ENT. In addition general physicians and post-graduates will also find it useful for quick reference in their routine clinical practice.