Three standing figures, seen from side and front 

This anatomical study by Peter Paul Rubens, a renowned Flemish artist, demonstrates his keen understanding of the human form. The drawing, executed in a masterful line, showcases three male figures in various poses. The figures are depicted nude, allowing for a detailed exploration of muscle structure and anatomical proportions. Rubens's meticulous attention to detail highlights his mastery of human anatomy and his ability to convey movement and weight. The composition is a testament to the artistic practice of figure drawing, a fundamental skill for artists of all periods.