This document provides an overview of basic electrocardiography and the steps for ECG interpretation. It discusses the cardiac conduction system and placement of ECG leads. It then outlines a 5 step approach to ECG interpretation: 1) assessing rhythm, 2) heart rate, 3) axis, 4) morphology, and 5) other findings. Key aspects of the ECG that are evaluated include the P wave, PR interval, QRS complex, ST segment, T wave, and QT interval. Common abnormalities such as arrhythmias, conduction blocks, and signs of infarction are also reviewed. The goal is to provide guidance on systematic ECG analysis and interpretation.