The fourth edition of ECG in Medical Practice has been fully revised to provide trainees with the latest advances in ECG, helping them recognise, interpret and diagnose cardiac abnormalities.Divided into three sections, the first part presents the basic principles of ECG and normal and abnormal ECG patterns. The following chapters describe ECG changes in different heart diseases, emphasising efficiency and fluency in interpreting the patterns. The final section provides 150 ECG tracings for trainees to practise and interpret on their own.