I. Acute Ischemic Heart Disease -- ST Elevation Related to the Site of Coronary Occlusion -- Non-ST Segment Elevation Myocardial Infarction (NSTEMI) -- II Mimicking Ischemic Heart Disease -- Pericarditis -- Intracranial Bleeding -- Tako-Tsubo Cardiomyopathy -- Early Repolarization Pattern -- III Heart Failure and Resynchronization Therapy -- Acute Heart Failure and Pulmonary Edema -- Chronic Heart Failure -- Cardiogenic Shock -- CRT and Possible Dysfunction -- IV Cardiomyopathy -- Hypertrophic Cardiomyopathy -- Cardiac Amyloidosis -- Left Ventricular Non-Compaction Cardiomyopathy -- Arrhythmogenic Right Ventricular Dysplasia (ARVD) -- V Valvular Heart Disease -- Aortic stenosis -- Mitral regurgitation -- Prosthetic valve Dysfunctions -- VI Rhythm Disorders: Tachyarrhytmias.-Wide QRS Complex Tachycardia -- Supraventricular Reentrant Tachycardias -- Atrial Fibrillation and Related Disorders -- Atrial Flutter -- VII Rhythm Disorders: Bradyarrhytmias -- SA blocks -- Atrioventricolar blocks -- VIII Channelopathies -- Brugada Syndrome -- Long QT syndrome -- Catecholaminergic Polymorphic Ventricular Tachycardia. A challenging Case of "Epilepsy" -- IX - Miscellanea -- Sudden Cardiac Death -- The Role of "Home Monitoring" -- Drugs-related Adverse Events -- EKG of difficult Interpretation: Small Clues May Make the Difference. The Role of the P Wave.