This is a general cardiology handbook that addresses the entire cardiological pathology. The information is in a Q&A format and accompanies the reader through each significant condition, from incidence and severity, to mechanisms, clinical and lab diagnosis, and up to treatment and prognosis. The chapters have an uniform structure fostering a methodical approach to heart disease. The level is intermediate, with an accent on clinical practice. At the same time, an excellent tool for preparing for exams, as i) disease mechanisms are systematically discussed; ii) guidelines are explained and summarized; iii) novel resarch directions are explained. The book provides conciseness, completeness, and updatedness, while offers: for residents, familiarization with the discipline of cardiology; for cardiology fellows, the book will be a friendly companion for practice and Boards study; for primary care physicians, the book represents an update to their knowledge; while for clinical cardiologists, the book represents a companion reference.