Audiology is a scientific and dynamic subject which is continuously evolving since its birth in World War-II with more technical up-gradation. In this book we have chosen the topics on audiometric evaluation so that students can easily grasp the concepts of acoustic and audiometric tests. We have chosen the concepts which are crucial and are of immense help for the beginners. The main reason and idea behind writing this book is that we wanted to develop a book which is easy to read and understand without going into the deep discussion so that students can develop an understanding of the concepts and audiological procedures very easily. This is the first edition, any suggestions or comments are ever welcomed so that we can improve this in future.