Presents the subject of ECG in a crisp and practically relevant format, which is not just easy to comprehend but also handy for reference. Initial chapters deal with basic principles, nomenclature of deflections and calculation of heart rate and electrical-axis. Presents up-to-date, well-explained, evidence-based concepts to explain pathophysiology of ECG patterns. A new chapter on ECG recording during Pacemaker rhythm has been introduced. Easy-to-read and user-friendly presentation merging with fluid scientific information and latest clinical data make for an enhanced reading experience. Valuable resource for medical students, resident doctors, paramedical staff and clinicians involved in heart care.