
Wim Crouwel served as house designer for the Stedelijk Museum in Amsterdam from 1963 to 1985. Over 300 posters — each immediately identifiable, each built on a strict modular grid. The grid was not a tool. It was the aesthetic.
His most radical move was the New Alphabet of 1967: letterforms designed purely from horizontal and vertical strokes, no diagonals or curves. Built for cathode ray typesetting machines that couldn't render them. The constraint of the machine became the style.
Most Stedelijk posters never show their grid. Vormgevers, 1968, is the exception that proves the system: Crouwel printed the grid itself across the entire poster and drew the letterforms from its cells. The structure became the image.