Despite the significance of ENT in clinical practice, there has long been an immense need for a concise and precise textbook that provides a clear, straightforward, and accessible understanding of these diseases, particularly for undergraduate medical students and residents. This need served as the primary motivation behind writing this book. My goal was to create a book that is to the point, written in simple and easy language, without unnecessary complexity, yet comprehensive enough to cover the fundamental concepts of ENT diseases.The book is specifically designed for undergraduate MBBS students and residents in oto-rhino-laryngology (ENT). It provides a structured approach to the essential ENT topics that medical graduates must know. The content has been meticulously curated to align with the curriculum requirements and examination patterns, ensuring that students can grasp key concepts efficiently and effectively.While primarily aimed at undergraduate students and residents, I believe this book will also serve as a quick reference for general physicians and postgraduate trainees, aiding them in their routine clinical practice.