More than a century after its birth, and in the era of demanding tests,—fast and silent like computed tomography or slow and loud like magnetic resonance—the ECG retains its “original lightness,” a bearable lightness. The ECG flies and finally lands on the patient’s shoulder without the gravity of other tools but with formidable diagnostic yield, able to shake the shoulders of the most skeptical cardiologist.

Rarely can other disciplines in science and medicine make use of a test which is both economic and at the same time so wide ranging. The investment does not end in a pink sheet and will have fulfilled the eventful cultural ground traveled by those who have to read these “light” exams. This book aims to alleviate the task of these professionals of the heart, whether frugal editors of reports or romantic and visionary exegetes of the pink sheet. Of course, it is a surface ECG, but only shallow people do not judge by appearances. “We are such stuff as dreams are made on, and our little life is rounded with a sleep.” So it’s up to us to interpret them. To those who have had the patience and goodwill to get this far, we wish sweet dreams or rather pink ones!