This book covers the basic concept regarding clinical audiology. It is specifically designed for undergraduate medical students 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.The first 2 chapters are related with the clinical anatomy and physiology of the ear. The third chapter is related with the hearing loss, its types and common causes. In the 4th chapter, common clinical tests are given related with hearing. Then each type of audiological test is given in each chapter covering almost all the common clinical audiological investigations.