Textbook of Basic and Advanced Electrocardiography’ has been written to keep pace with newer developments in the field of electrocardiogram. As such, this book will be a means of updating one’s knowledge on every aspects of electrocardiographic diagnosis both old and new. All the chapters of this book have been divided into two separate parts: ‘Text’ and ‘summary’. ‘Text’ part is for better understanding of the particular subject and for broadening the concept in detail. And the ‘summary’ part is for easy understanding and quick recapitulation, aiding an examinee to revise and re-read the whole book even before night prior to examination. This book will prove worthy to the uninitiated undergraduate students, who will find here the fundamentals of electrocardiography based on time honored electrophysiological concepts and facts, and it will be also equally deserving to the cardiologists and internists, who will find it rewarding to review the concepts already acquired and as an update of the latest electrocardiographic disclosures.