1. The History and Development of Electrocardiography 2. Anatomy of the Electrocardiogram 3. Electrical Axis, Position and Rotation of the Heart 4. Chamber Enlargements 5. Bundle Branch Blocks and Fascicular Blocks 6. Heart Block 7. Ischemic Heart Disease 8. Arrhythmias 9. Drugs and Electrolytes 10. Congenital Heart Disease 11. The Magic of ECG 12. Artifacts in ECG 13. Treadmill Test 14. Computer Confusion Index