Gesture drawing is a technique used by artists to quickly sketch the pose and motion of a subject through directional lines and basic shapes before adding detail. It involves observing the subject to understand how different body parts relate and move, then using quick sketches to capture the pose and flow of motion in a few lines and shapes rather than focusing on realistic details. Gesture drawing helps artists train their hands to rapidly translate what they see into sketches and prepares them for finished works by planning the composition through these quick sketches.