The Pulse of the Urban Night In the bustling streets of Amsterdam, where the shadows of the early twentieth century danced under gaslight, Piet van der Hem found his rhythm. He was a man of many pens and brushes, moving through the world as a painter, an illustrator, and a political cartoonist. His eyes were drawn to the restless energy of the city, finding beauty in the smoke of cabarets and the rhythmic movement of dance palaces. He…