Audiology is a branch of science concerned with the study of hearing, balance and related disorders. A specialist who treats hearing loss and attempts to prevent hearing related damage is called an audiologist. They use several testing techniques like hearing tests, electrophysiologic tests, otoacoustic emission measurements and videonystagmography to assess a patient’s hearing capabilities. Hearing loss is a common disorder. A person’s partial or total inability to hear is known as hearing loss. Such loss can be both temporary and permanent. It may occur in a single or both ears. This book aims to shed light on some of the unexplored aspects of audiology and the recent researches in this field. It is a compilation of chapters that discuss the most vital concepts and emerging trends in the field of audiology. For all those who are interested in audiology, this book can prove to be an essential guide.