Book excerpt: The gold standard in electrophysiology, Dr. Josephson's book brings to light current relevant practices aimed at medical internists, clinical cardiologists, and electrophysiologists, emphasizing the capabilities and limitations of clinical cardiac electrophysiology techniques. Thoroughly revised, the Third Edition includes increased coverage of catheter ablation and the latest information on new catheters and computers that measure electrical activity in the heart. Full-color heart maps and illustrations of electrophysiologic concepts help clarify the text. A Brandon-Hill recommended title.