Book excerpt: The third edition of 150 Practice ECGs: Interpretation and Review combines practice tracings with clinical cardiology, providing students with the practical knowledge necessary to read, interpret, and understand ECGs. This essential review book is organized into three sections: introductory text reviewing ECG diagnostic criteria, pathophysiology, and clinical correlation; 150 ECG tracings with a brief clinical history; and interpretation and teaching points for each of the 150 ECGs. 150 Practice ECGs: Interpretation and Review, 3rd Edition is ideal as an introductory text for medical and nursing students at any stage of training, for residents and fellows as a refresher before board exams, and for the sophisticated student/teacher as a comprehensive teaching file.