This book is an engaging exploration of electrocardiograms and its clinical aspects. Electrocardiograms are one of the most extensively used techniques for analyzing the structure-function relationships of the heart in physical conditions and disorders. This book discusses the technical aspects of the developments in electrocardiography. It is full of anatomical illustrations, electrocardiogram records, flow data and algorithms which demonstrate the contemporary aspects of electrocardiography. This book also elucidates how various technological impediments inherent to instrument-patient interfacing, recording and interpreting deviations in electrocardiogram time gaps and morphologies, etc. are overcome.